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<div class="moz-cite-prefix">M, <br>
<br>
You're reading his original e-mail wrong. He didn't say AMD GPUs
had a 30-40% advantage over NVidia. He's asking IF people would
switch to AMD if that were true. <br>
<br>
Personally, I think it would have to be much more than 30-40%. The
next NVidia card would probably provide that kind of improvement,
so most NVidia owners would just wait for the next generation of
NVidia product to come out instead of switching to another
processor and port their code. How much better? I'd say at least
100%. You can't just have better performance, you need an
overwhelming performance advantage to convince people who are
already using CUDA to switch. 30-40% isn't going to do it. <br>
<br>
If you can't do that, you have to go after new users who haven't
started using CUDA yet, provide them with a value alternative to
NVidia. Since a lot of public codes already support CUDA, you'd
have to go after users writing their own code, preferably at the
start of a project who haven't already invested in CUDA. <br>
<br>
Prentice<br>
<br>
On 03/04/2015 02:33 PM, Massimiliano Fatica wrote:<br>
</div>
<blockquote
cite="mid:CABuTdwF169jc6d_CuL5H7qT4CXwnT0ZF8Rqy-5Q_rwxPP3B-8g@mail.gmail.com"
type="cite">
<div dir="ltr">Looking at the list:
<div>FirePro s9150 has a score of 2.89/2.99 while the K40c has a
score of 2.98/3.15.</div>
<div>Where is the 30-40% advantage?</div>
<div><br>
</div>
<div>M</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Wed, Mar 4, 2015 at 11:26 AM,
Michael Di Domenico <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:mdidomenico4@gmail.com" target="_blank">mdidomenico4@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex"><span
class="">On Wed, Mar 4, 2015 at 2:07 PM, C Bergström <<a
moz-do-not-send="true"
href="mailto:cbergstrom@pathscale.com">cbergstrom@pathscale.com</a>>
wrote:<br>
> Frankly, it's visible we still aren't the best
performance on some<br>
> codes.. Those issues basically fall into two camps
and we're working<br>
> on it.<br>
> -----------<br>
> Having said this..<br>
> Would anyone build an AMD GPU cluster if<br>
> 1) The GPU was 30-40% faster than a K40<br>
> 2) It cost less<br>
> 3) OpenACC/OpenMP4/CUDA programming models were high
performance and supported<br>
> 4) More oncard ram<br>
> -----------<br>
<br>
</span>if the AMD's showed a 30-40% increase in performance
over a k40, i'd<br>
buy them. but our lock in with CUDA would make it
difficult...<br>
<div class="HOEnZb">
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