The PS3 has a number of downsides, which can mostly be summarized with the lack of support since Sony removed the OtherOS option.<div><br><div>Secondarily, it's difficult to write a compiler smart enough to take good advantage of the PSUs on the Cell Broadband Engine.</div><div><br><div>If you decide you want to learn about doing highly parallel computing on the Cell, I can bring my BladeCenter to the shop and fire up one (or many) of my QS20 blades for experiments.</div><div>But honestly, the Cell is lots of trouble without so much benefit.<br><br><div class="gmail_quote">On Tue Feb 03 2015 at 4:14:46 PM david <<a href="mailto:ainut@knology.net" target="_blank">ainut@knology.net</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div bgcolor="#FFFFFF" text="#000000">
    IF and it's a big IF, your problem lends itself to a pure
    distributed processing paradigm (think Cray...), a very low cost
    setup with phenomenal compute speeds is the Sony Playstation 3,
    believe it or not.  You can find them really cheap nowadays,. 
    Network a few of them together, install LINUX/UNIX on them (might be
    available out there) and setup the Cray-type compiler (from SGI) and
    you'll have a honking system.  In the right problem domain, 5 of
    those would outperform hundreds of the pico-computers.</div><div bgcolor="#FFFFFF" text="#000000"><br>
    <br>
    <br>
    <br>
    <br>
    <div>On 02/03/2015 03:57 PM, Stephan Henning
      wrote:<br>
    </div>
    <blockquote type="cite">
      <div dir="ltr">There was a group that did it a while back. I want
        to say they did it with Atom processors. Ended up with 400+
        nodes in a 10U rack I think. </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Tue, Feb 3, 2015 at 3:55 PM, Erik
          Arendall <span dir="ltr"><<a href="mailto:earendall@gmail.com" target="_blank">earendall@gmail.com</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div dir="ltr">This would be a cool project to develop a
              module board that contains the cpu/gpu of choice and
              required ram for use. then the modules could plug in to a
              supervisory control node. </div>
            <div>
              <div>
                <div class="gmail_extra"><br>
                  <div class="gmail_quote">On Tue, Feb 3, 2015 at 3:50
                    PM, Stephan Henning <span dir="ltr"><<a href="mailto:shenning@gmail.com" target="_blank">shenning@gmail.com</a>></span>
                    wrote:<br>
                    <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                      <div dir="ltr">Hey Hunter,
                        <div><br>
                        </div>
                        <div>Well, with the Edison, it wouldn't be 27
                          devices, it would be closer to 400 :)</div>
                        <div><br>
                        </div>
                        <div>I <i>think</i> I can fit 27 mini-itx
                          motherboards in a 4U chassis (maybe only
                          21-24, depending on heatsink height). For the
                          raspi's or the Edisons to be viable they would
                          need to beat that baseline on a flop/watt vs
                          $$ comparison. Even in that case, the low RAM
                          amount limits their usefulness. </div>
                      </div>
                      <div>
                        <div>
                          <div class="gmail_extra"><br>
                            <div class="gmail_quote">On Tue, Feb 3, 2015
                              at 3:44 PM, Hunter Fuller <span dir="ltr"><<a href="mailto:hfuller@pixilic.com" target="_blank">hfuller@pixilic.com</a>></span>
                              wrote:<br>
                              <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                                <p dir="ltr">27 devices in a metal box
                                  will work fine, provided there is also
                                  a fairly robust AP in that box. I
                                  would personally still lean toward USB
                                  Ethernet though. But that increases
                                  your devices size and complexity...
                                  Hm.</p>
                                <p dir="ltr">As far as PXE boot, since
                                  there is no wired Ethernet available,
                                  I doubt that is a thing. However, you
                                  can Mount the internal storage as
                                  /boot, and have a script run that
                                  rsyncs the /boot fs between the boxes
                                  and a server. The rest can be achieved
                                  by using an NFS volume as your root
                                  partition. This setup is commonly done
                                  on armies of raspberry pis.</p>
                                <p dir="ltr">There wouldn't be much
                                  difference between original prep on
                                  this and originally preparing several
                                  SD cards. In one case, you have to
                                  connect each device to a provisioning
                                  station. In the other case,you connect
                                  each SD card to the same station. Not
                                  much different, and once you boot one
                                  time, you can do the maintenance in an
                                  automated fashion across all nodes. </p>
                                <div>
                                  <div>
                                    <div class="gmail_quote">On Jan 23,
                                      2015 9:36 AM, "Michael Carroll"
                                      <<a href="mailto:carroll.michael@gmail.com" target="_blank">carroll.michael@gmail.com</a>>
                                      wrote:<br type="attribution">
                                      <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                                        <div dir="ltr">Stephan,
                                          <div><br>
                                          </div>
                                          <div>I didn't realize that the
                                            Edison was wifi-only.  I'm
                                            interested to hear how 27
                                            wifi devices in a metal box
                                            will work?</div>
                                          <div><br>
                                          </div>
                                          <div>Also, do you know if the
                                            edison can pxeboot?  I think
                                            that's the best approach for
                                            booting a whole bunch of
                                            homogeneous computers, it
                                            would certainly be more
                                            maintenance overhead without
                                            that capability.</div>
                                          <div><br>
                                          </div>
                                          <div>~mc</div>
                                          <div><br>
                                          </div>
                                        </div>
                                        <div class="gmail_extra"><br>
                                          <div class="gmail_quote">On
                                            Thu, Jan 22, 2015 at 11:04
                                            PM, Stephan Henning <span dir="ltr"><<a href="mailto:shenning@gmail.com" target="_blank">shenning@gmail.com</a>></span>
                                            wrote:<br>
                                            <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                                              <div dir="ltr">@Erik
                                                <div>Well, the raspi and
                                                  beaglebone have less
                                                  ram than the Edison.
                                                  I'll have to take a
                                                  look at the Rock, the
                                                  Pro version offers
                                                  2gb, but since the
                                                  Edison is an x86
                                                  platform it is
                                                  advantageous in many
                                                  ways. 
                                                  <div><br>
                                                  </div>
                                                  <div>@Tim</div>
                                                </div>
                                                <div>Ya, that looks very
                                                  similar. I'll give it
                                                  a read through in the
                                                  morning. I'll make
                                                  sure to keep you
                                                  updated. </div>
                                              </div>
                                              <div>
                                                <div>
                                                  <div class="gmail_extra"><br>
                                                    <div class="gmail_quote">On
                                                      Thu, Jan 22, 2015
                                                      at 10:11 PM, Erik
                                                      Arendall <span dir="ltr"><<a href="mailto:earendall@gmail.com" target="_blank">earendall@gmail.com</a>></span>
                                                      wrote:<br>
                                                      <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                                                        <p dir="ltr">Not
                                                          sure of your
                                                          ram
                                                          requirements,
                                                          but there are
                                                          options in the
                                                          RasPI,
                                                          beaglebone
                                                          black, and
                                                          check out
                                                          Radxa Rock. </p>
                                                        <p dir="ltr"><a href="http://radxa.com/Rock" target="_blank">http://radxa.com/Rock</a></p>
                                                        <span><font color="#888888">
                                                          <p dir="ltr">Erik</p>
                                                          </font></span>
                                                        <div>
                                                          <div>
                                                          <div class="gmail_quote">On
                                                          Jan 22, 2015
                                                          10:07 PM, "Tim
                                                          H" <<a href="mailto:crashcartpro@gmail.com" target="_blank">crashcartpro@gmail.com</a>>
                                                          wrote:<br type="attribution">
                                                          <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                                                          <div dir="ltr">
                                                          <div>
                                                          <div>
                                                          <div>This
                                                          sounds like a
                                                          fun project! <br>
                                                          Reminds me of
                                                          this guy:<br>
                                                          <a href="http://www.pcworld.idg.com.au/article/349862/seamicro_cloud_server_sports_512_atom_processors/" target="_blank">http://www.pcworld.idg.com.au/<u></u>article/349862/seamicro_cloud_<u></u>server_sports_512_atom_<u></u>processors/</a><br>
                                                          </div>
                                                          (cluster of
                                                          low power
                                                          processors in
                                                          a single box)<br>
                                                          <br>
                                                          </div>
                                                          I'd also been
                                                          kicking a
                                                          similar idea
                                                          around for the
                                                          last year, but
                                                          no real
                                                          ability to do
                                                          it, so I'd
                                                          love to see
                                                          your progress!<br>
                                                          </div>
                                                          <div>-Tim<br>
                                                          </div>
                                                          </div>
                                                          <div class="gmail_extra"><br>
                                                          <div class="gmail_quote">On
                                                          Thu, Jan 22,
                                                          2015 at 9:10
                                                          PM, Stephan
                                                          Henning <span dir="ltr"><<a href="mailto:shenning@gmail.com" target="_blank">shenning@gmail.com</a>></span>
                                                          wrote:<br>
                                                          <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                                                          <div dir="ltr">In
                                                          some ways,
                                                          yes. The
                                                          biggest
                                                          limitation
                                                          with the
                                                          Edison for me
                                                          is the ram.
                                                          While there is
                                                          a lot that we
                                                          could run on
                                                          it, it's
                                                          restricts them
                                                          enough that I
                                                          don't think it
                                                          would be as
                                                          useful, which
                                                          changes alters
                                                          the true
                                                          'cost' of the
                                                          setup.
                                                          <div><br>
                                                          </div>
                                                          <div>Granted,
                                                          you could
                                                          probably fit a
                                                          few hundred of
                                                          them in a 4U
                                                          chassis. It
                                                          would be an
                                                          interesting
                                                          experiment in
                                                          integration
                                                          though since
                                                          they have no
                                                          ethernet
                                                          interface,
                                                          only
                                                          wireless. </div>
                                                          </div>
                                                          <div>
                                                          <div>
                                                          <div class="gmail_extra"><br>
                                                          <div class="gmail_quote">On
                                                          Thu, Jan 22,
                                                          2015 at 9:02
                                                          PM, Erik
                                                          Arendall <span dir="ltr"><<a href="mailto:earendall@gmail.com" target="_blank">earendall@gmail.com</a>></span>
                                                          wrote:<br>
                                                          <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                                                          <p dir="ltr">I've
                                                          often kicked
                                                          the idea
                                                          around doing
                                                          this with
                                                          Arduinos and
                                                          FPGAs. I guess
                                                          you could also
                                                          do it with
                                                          Intel Edison
                                                          modules. Cost
                                                          wise the
                                                          Edison modules
                                                          would better
                                                          than a PC. </p>
                                                          <span><font color="#888888">
                                                          <p dir="ltr">Erik
                                                          </p>
                                                          </font></span>
                                                          <div>
                                                          <div>
                                                          <div class="gmail_quote">On
                                                          Jan 22, 2015
                                                          6:44 PM,
                                                          "Stephan
                                                          Henning" <<a href="mailto:shenning@gmail.com" target="_blank">shenning@gmail.com</a>>
                                                          wrote:<br type="attribution">
                                                          <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                                                          <div dir="auto">
                                                          <div>@mc</div>
                                                          <div>Both. If
                                                          I start to
                                                          scale this to
                                                          a large number
                                                          of nodes I can
                                                          foresee many
                                                          headaches if I
                                                          can't easily
                                                          push
                                                          modifications
                                                          and updates.
                                                          From the job
                                                          distribution
                                                          side, it would
                                                          be great to
                                                          maintain
                                                          compatibility
                                                          with condor,
                                                          I'm just
                                                          unsure how
                                                          well it will
                                                          operate if it
                                                          has to hand
                                                          jobs off to
                                                          the head node
                                                          that then get
                                                          distributed
                                                          out further. </div>
                                                          <div><br>
                                                          </div>
                                                          <div>@ Brian</div>
                                                          <div>Our
                                                          current
                                                          cluster is
                                                          made up of
                                                          discrete
                                                          machines only
                                                          about 20
                                                          nodes. Many of
                                                          the nodes are
                                                          actual user
                                                          workstations
                                                          that are
                                                          brought in
                                                          when inactive.
                                                          There is no
                                                          uniform
                                                          provisioning
                                                          method. Every
                                                          box has a
                                                          slightly
                                                          different
                                                          hardware
                                                          configuration.
                                                          Thankfully we
                                                          do a pretty
                                                          good job
                                                          keeping all
                                                          required
                                                          software
                                                          aligned to the
                                                          sam version. </div>
                                                          <div><br>
                                                          </div>
                                                          <div>The VM
                                                          idea is
                                                          interesting. I
                                                          hadn't
                                                          considered
                                                          that. I will
                                                          need to think
                                                          on that and
                                                          how I might be
                                                          able to
                                                          implement it. </div>
                                                          <div><br>
                                                          </div>
                                                          <div>@david</div>
                                                          <div>Yup, I'm
                                                          fully aware
                                                          this level of
                                                          distributed
                                                          computing is
                                                          only good for
                                                          specific
                                                          cases. I
                                                          understand
                                                          your position,
                                                          thanks. <br>
                                                          <br>
                                                          <div>-stephan</div>
                                                          <div><br>
                                                          </div>
                                                          <div>---———---•---———---•---———---</div>
                                                          Sent from a
                                                          mobile device,
                                                          please excuse
                                                          the spelling
                                                          and brevity. </div>
                                                          <div><br>
                                                          On Jan 22,
                                                          2015, at 5:54
                                                          PM, Brian
                                                          Oborn <<a href="mailto:linuxpunk@gmail.com" target="_blank">linuxpunk@gmail.com</a>>
                                                          wrote:<br>
                                                          <br>
                                                          </div>
                                                          <blockquote type="cite">
                                                          <div>
                                                          <div dir="ltr">I
                                                          would be
                                                          tempted to
                                                          just copy what
                                                          the in-house
                                                          cluster uses
                                                          for
                                                          provisioning.
                                                          That will save
                                                          you a lot of
                                                          time and make
                                                          it easier to
                                                          integrate with
                                                          the larger
                                                          cluster if you
                                                          choose to do
                                                          so. Although
                                                          it can be
                                                          tempting to
                                                          get hardware
                                                          in your hands,
                                                          I've done a
                                                          lot of work
                                                          with building
                                                          all of the
                                                          fiddly Linux
                                                          bits
                                                          (DHCP+TFTP+root
                                                          on NFS+NFS
                                                          home) in
                                                          several VMs
                                                          before moving
                                                          to real
                                                          hardware. You
                                                          can set up a
                                                          private
                                                          VM-only
                                                          network
                                                          between your
                                                          head node and
                                                          the slave
                                                          nodes and work
                                                          from there.</div>
                                                          <div class="gmail_extra"><br>
                                                          <div class="gmail_quote">On
                                                          Thu, Jan 22,
                                                          2015 at 5:31
                                                          PM, Michael
                                                          Carroll <span dir="ltr"><<a href="mailto:carroll.michael@gmail.com" target="_blank">carroll.michael@gmail.com</a>></span>
                                                          wrote:<br>
                                                          <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                                                          <div dir="auto">
                                                          <div>So is
                                                          your concern
                                                          with
                                                          provisioning
                                                          and setup or
                                                          with actual
                                                          job
                                                          distribution?<br>
                                                          <br>
                                                          ~mc mobile</div>
                                                          <div>
                                                          <div>
                                                          <div><br>
                                                          On Jan 22,
                                                          2015, at
                                                          17:15, Stephan
                                                          Henning <<a href="mailto:shenning@gmail.com" target="_blank">shenning@gmail.com</a>>
                                                          wrote:<br>
                                                          <br>
                                                          </div>
                                                          <blockquote type="cite">
                                                          <div>
                                                          <div dir="ltr">This
                                                          is a side
                                                          project for
                                                          the office.
                                                          Sadly, most of
                                                          this type of
                                                          work can't be
                                                          farmed out to
                                                          external
                                                          clusters,
                                                          otherwise we
                                                          would use it
                                                          for that. We
                                                          do currently
                                                          utilize AWS
                                                          for some of
                                                          this type
                                                          work, but only
                                                          for internal
                                                          R&D.
                                                          <div><br>
                                                          </div>
                                                          <div>This all
                                                          started when
                                                          the Intel
                                                          Edison got
                                                          released. Some
                                                          of us were
                                                          talking about
                                                          it one day and
                                                          realized that
                                                          it <i>might</i>
                                                          have <i>just
                                                          enough</i> processing
                                                          power and ram
                                                          to handle some
                                                          of our smaller
                                                          problems.
                                                          We've talked
                                                          about it some
                                                          more and the
                                                          discussion has
                                                          evolved to the
                                                          point where
                                                          I've been
                                                          handed some
                                                          hours and a
                                                          small amount
                                                          of funding to
                                                          try and
                                                          implement a
                                                          'cluster-in-a-box'. </div>
                                                          <div><br>
                                                          </div>
                                                          <div>The main
                                                          idea being to
                                                          rack a whole
                                                          bunch of
                                                          mini-itx
                                                          boards on edge
                                                          into a 4U
                                                          chassis (yes,
                                                          they will
                                                          fit). Assuming
                                                          a 2"
                                                          board-board
                                                          clearance
                                                          across the
                                                          width of the
                                                          chassis and 1"
                                                          spacing
                                                          back-to-front
                                                          down the depth
                                                          of a box, I
                                                          think I could
                                                          fit 27 boards
                                                          into a 36"
                                                          deep chassis,
                                                          with enough
                                                          room for the
                                                          power supplies
                                                          and
                                                          interconnects. </div>
                                                          <div><br>
                                                          </div>
                                                          <div>Utilizing
                                                          embedded
                                                          motherboards
                                                          with Atom
                                                          C2750 8-core
                                                          CPU's and 16gb
                                                          of ram per
                                                          board, that
                                                          should give me
                                                          a pretty
                                                          substantial
                                                          cluster to
                                                          play with. 
                                                          Obviously I am
                                                          starting
                                                          small,
                                                          probably with
                                                          two or three
                                                          boards running
                                                          Q2900 4-core
                                                          cpus until I
                                                          can get the
                                                          software side
                                                          worked out.</div>
                                                          <div><br>
                                                          </div>
                                                          <div>The
                                                          software-infrastructure
                                                          side is the
                                                          part I'm
                                                          having a hard
                                                          time with.
                                                          While there
                                                          are options
                                                          out there for
                                                          how to do
                                                          this, they are
                                                          all relatively
                                                          involved and
                                                          there isn't an
                                                          obvious 'best'
                                                          choice to me
                                                          right now.
                                                          Currently our
                                                          in-house HPC
                                                          cluster
                                                          utilizes
                                                          HTCondor for
                                                          it's backbone,
                                                          so I would
                                                          like to
                                                          maintain some
                                                          sort of
                                                          connection to
                                                          it. Otherwise,
                                                          I'm seeing
                                                          options in the
                                                          Beowulf and
                                                          Rocks areas
                                                          that could be
                                                          useful, I'm
                                                          just not sure
                                                          where to start
                                                          in all
                                                          honesty. </div>
                                                          <div><br>
                                                          </div>
                                                          <div>At the
                                                          end of the day
                                                          this needs to
                                                          be relatively
                                                          easy for us to
                                                          manage (time
                                                          spent working
                                                          on the cluster
                                                          is time spent
                                                          not billing
                                                          the customer)
                                                          while being
                                                          easy enough to
                                                          add notes to,
                                                          assuming this
                                                          is a success
                                                          and I get the
                                                          OK to expand
                                                          it to a full
                                                          42U racks
                                                          worth. </div>
                                                          <div><br>
                                                          </div>
                                                          <div><br>
                                                          </div>
                                                          <div>Our
                                                          current
                                                          cluster is
                                                          almost always
                                                          fully
                                                          utilized.
                                                          Currently
                                                          we've got
                                                          about a 2
                                                          month backlog
                                                          of jobs on
                                                          it. </div>
                                                          <div><br>
                                                          </div>
                                                          </div>
                                                          <div class="gmail_extra"><br>
                                                          <div class="gmail_quote">On
                                                          Thu, Jan 22,
                                                          2015 at 4:55
                                                          PM, Brian
                                                          Oborn <span dir="ltr"><<a href="mailto:linuxpunk@gmail.com" target="_blank">linuxpunk@gmail.com</a>></span>
                                                          wrote:<br>
                                                          <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                                                          <div dir="ltr">If
                                                          you can keep
                                                          your
                                                          utilization
                                                          high, then
                                                          your own
                                                          hardware can
                                                          be much more
                                                          cost
                                                          effective.
                                                          However, if
                                                          you end up
                                                          paying
                                                          depreciation
                                                          and
                                                          maintenance on
                                                          a cluster
                                                          that's doing
                                                          nothing most
                                                          of the time
                                                          you'd be
                                                          better off in
                                                          the cloud.</div>
                                                          <div>
                                                          <div>
                                                          <div class="gmail_extra"><br>
                                                          <div class="gmail_quote">On
                                                          Thu, Jan 22,
                                                          2015 at 4:50
                                                          PM, Michael
                                                          Carroll <span dir="ltr"><<a href="mailto:carroll.michael@gmail.com" target="_blank">carroll.michael@gmail.com</a>></span>
                                                          wrote:<br>
                                                          <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                                                          <div dir="ltr">Depending
                                                          on what you
                                                          are going to
                                                          do, it seems
                                                          like it would
                                                          make more
                                                          sense to use
                                                          AWS or Digital
                                                          Ocean these
                                                          days, rather
                                                          than standing
                                                          up your own
                                                          hardware.
                                                          Maintaining
                                                          your own
                                                          hardware
                                                          sucks.
                                                          <div><br>
                                                          </div>
                                                          <div>That
                                                          being said, if
                                                          you are doing
                                                          something that
                                                          requires
                                                          InfiniBand,
                                                          then hardware
                                                          is your only
                                                          choice :)</div>
                                                          <span><font color="#888888">
                                                          <div><br>
                                                          </div>
                                                          <div>~mc</div>
                                                          </font></span></div>
                                                          <div>
                                                          <div>
                                                          <div class="gmail_extra"><br>
                                                          <div class="gmail_quote">On
                                                          Thu, Jan 22,
                                                          2015 at 4:43
                                                          PM, Joshua
                                                          Pritt <span dir="ltr"><<a href="mailto:ramgarden@gmail.com" target="_blank">ramgarden@gmail.com</a>></span>
                                                          wrote:<br>
                                                          <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                                                          <div dir="ltr">My
                                                          friends and I
                                                          installed a
                                                          Beowulf
                                                          cluster on a
                                                          closet full of
                                                          Pentium 75 Mhz
                                                          machines we
                                                          were donated
                                                          just for fun
                                                          many years ago
                                                          back when
                                                          Beowulf was
                                                          just getting
                                                          popular.  We
                                                          never figured
                                                          out anything
                                                          to do with it
                                                          though...</div>
                                                          <div>
                                                          <div>
                                                          <div class="gmail_extra"><br>
                                                          <div class="gmail_quote">On
                                                          Thu, Jan 22,
                                                          2015 at 5:31
                                                          PM, Brian
                                                          Oborn <span dir="ltr"><<a href="mailto:linuxpunk@gmail.com" target="_blank">linuxpunk@gmail.com</a>></span>
                                                          wrote:<br>
                                                          <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                                                          <div dir="ltr">In
                                                          my previous
                                                          job I set up
                                                          several
                                                          production
                                                          Beowulf
                                                          clusters,
                                                          mainly for
                                                          particle
                                                          physics
                                                          simulations
                                                          and this has
                                                          been an area
                                                          of intense
                                                          interest for
                                                          me. I would be
                                                          excited to
                                                          help you out
                                                          and I think I
                                                          could provide
                                                          some good
                                                          assistance.
                                                          <div><br>
                                                          </div>
                                                          <div>Brian
                                                          Oborn (aka
                                                          bobbytables)<br>
                                                          <div><br>
                                                          </div>
                                                          <div class="gmail_extra"><br>
                                                          <div class="gmail_quote"><span>On
                                                          Thu, Jan 22,
                                                          2015 at 4:25
                                                          PM, Stephan
                                                          Henning <span dir="ltr"><<a href="mailto:shenning@gmail.com" target="_blank">shenning@gmail.com</a>></span>
                                                          wrote:<br>
                                                          </span>
                                                          <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid"><span>
                                                          <div dir="ltr">Does
                                                          anyone on the
                                                          mailing list
                                                          have any
                                                          experience
                                                          with setting
                                                          up a cluster
                                                          computation
                                                          system? If so
                                                          and you are
                                                          willing to
                                                          humor my
                                                          questions, I'd
                                                          greatly
                                                          appreciate a
                                                          few minutes of
                                                          your time. <span><font color="#888888">
                                                          <div><br>
                                                          </div>
                                                          <div>-stephan</div>
                                                          </font></span></div>
                                                          <br>
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                                                          </span></blockquote>
                                                          </div>
                                                          <br>
                                                          </div>
                                                          </div>
                                                          </div>
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                                                          <br>
                                                          </div>
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                                                          <blockquote type="cite">
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