On Wed, Jun 16, 2010 at 4:29 PM, Oleg Goldshmidt <p...@goldshmidt.org> wrote:
> On Wed, Jun 16, 2010 at 1:23 PM, Shimon Panfil <i...@industrialphys.com> > wrote: > > > > Hi folks, > > I'm looking for affordable workstation for heavy number crunching, not > > What's "affordable" and what is "heavy number crunching"? > > For most large-scale scientific/engineering number-crunching physical > parallelism (multiple CPUs/cores) is important for performance. Will > you benefit from many more than 4 cores? Will anything more than > commodity 4 core desktop be prohibitively expensive? Will you benefit > / can you afford, e.g., a CUDA-based number-cruncher under your desk? > > Note that while a CPU consumes around 100W at highest P-state (core voltage and frequency), based for example on opteron specifications, GPGPUs consume around 300W and even more when active. If the current box has a problem with dissipating heat, it will not take a GPGPU. Furthermore, switching to GPGPU programming has a huge cost in labor. For this specific case, in which Shimon is a consultant, my assumption is that he works with a different piece of software every time, he will not have a chance to enjoy the fruit of his labor. -- Orna Agmon Ben-Yehuda. http://ladypine.org
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