<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif">Hi Fran, </div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">You can start a master node first and then add different types of nodes later. You may setup the SGE to define the job allocation behavior among these nodes.</div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">-Jin</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Dec 8, 2014 at 6:19 AM, Fran Campillo <span dir="ltr"><<a href="mailto:fran@spitch.ch" target="_blank">fran@spitch.ch</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
Hi,<br>
<br>
I began using StarCluster a couple of weeks ago for my research,<br>
and I find it really useful framework. I had to setup SGE myself several<br>
times in the past, and StarCluster makes our life way easier.<br>
<br>
I still don't know many of the features of StarCluster, and I would<br>
like to ask the community whether certain things I want to do are<br>
actually possible with the current version from StarCluster. In<br>
particular, I would like to create a heterogeneous cluster on<br>
StarCluster (this is, with different kinds of instances, that I could<br>
have in different SGE queues. In the problem I have to solve there are<br>
some stages that need GPU and others that do not, and I would like to be<br>
able to setup the complete cluster at the beginning of the process and<br>
work like this:<br>
<br>
------------<br>
<br>
1.- Init: setup of the heterogeneous cluster {gpu_clust, no_gpu_clust).<br>
<br>
2.- No cuda tasks:<br>
2.1.- stop gpu_clust instances.<br>
2.2.- run tasks in no_gpu_clust.<br>
<br>
3.- Cuda tasks:<br>
3.1.- stop no_gpu_clust.<br>
3.2.- start gpu_clust.<br>
3.3.- run tasks in gpu_clust.<br>
<br>
4.- No cuda tasks:<br>
...<br>
<br>
------------<br>
<br>
Is this currently possible with StarCluster? I guess that I can<br>
already fake this behavior creating both clusters from another Amazon<br>
instance and run the tasks with one or another via ssh, but I find it a<br>
worse solution.<br>
<br>
Thank you very much in advance!<br>
<br>
Cheers!<br>
<br>
Fran.<br>
<br>
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</blockquote></div><br></div>