<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Hello,</div><div><br></div><div>Good news, It works !</div><div>Whith your patch I can run 255 tasks and perhaps more, without any special</div><div>configuration on the machine (*)</div><div><div style="font-size: 13px; "><br></div><div style="font-size: 13px; "><span class="Apple-style-span" style="font-size: medium;"><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 13px;"><br></span></font></span></div></div><div>It's a very good news for me, Let me thank you very much Darius</div><div><br></div><div style="font-size: 15px; "><i>>mpiexec -np 255 bin/advance_test </i></div><div style="font-size: 14px; "><i>Running MPI version 2, subversion 2 </i></div><div style="font-size: 14px; "><i>I am the master task 0 sur ccwpge0062, for 254 slaves tasks, we will exchange a buffer of 10 MB</i></div><div style="font-size: 14px; "><i><br></i></div><div style="font-size: 14px; "><i>slave number 1, iteration = 1</i></div><div style="font-size: 14px; "><i>slave number 2, iteration = 1</i></div><div style="font-size: 14px; "><i>slave number 3, iteration = 1</i></div><div style="font-size: 14px; "><i>...</i></div><div style="font-size: 14px; "><i>slave number 254, iteration = 1</i></div><div style="font-size: 14px; "><i>slave number 1, iteration = 2</i></div><div style="font-size: 14px; "><i>slave number 2, iteration = 2</i></div><div style="font-size: 14px; "><i>...</i></div><div style="font-size: 14px; "><i><br></i></div><div style="font-size: 14px; "><i>slave number 254, iteration = 7</i></div><div><br></div><div><br></div><div>Now will try to run jobs (thru GridEngine + Hydra) with higher numbers of tasks</div><div>and I will tell you if it's ok</div><div><br></div><div>Best regards</div><div><br></div><div><br></div><div><div>Le 11 janv. 2012 à 18:49, Darius Buntinas a écrit :</div><br class="Apple-interchange-newline"><blockquote type="cite">I think I found the problem. Apply this patch (using "patch -p0 < seg_sz.patch"), then "make clean; make; make install", and try it again. Make sure to relink your application.<br><br>Let us know if this works.<br><br>Thanks,<br>-d<br></blockquote></div><div><br></div><div>PS : </div>(*)<div><div style="font-size: 13px; "> >limit</div><div style="font-size: 13px; ">cputime unlimited</div><div style="font-size: 13px; ">filesize unlimited</div><div style="font-size: 13px; ">datasize unlimited</div><div style="font-size: 13px; ">stacksize 10240 kbytes</div><div style="font-size: 13px; ">coredumpsize unlimited</div><div style="font-size: 13px; ">memoryuse unlimited</div><div style="font-size: 13px; ">vmemoryuse unlimited</div><div style="font-size: 13px; ">descriptors 1024 </div><div style="font-size: 13px; ">memorylocked 32 kbytes</div><div style="font-size: 13px; ">maxproc 409600 </div><div style="font-size: 13px; "><br></div><div style="font-size: 13px; "> >sysctl -A | egrep "shm"</div><div style="font-size: 13px; ">vm.hugetlb_shm_group = 0</div><div style="font-size: 13px; ">kernel.shmmni = 4096</div><div style="font-size: 13px; ">kernel.shmall = 2097152</div><div style="font-size: 13px; ">kernel.shmmax = 33554432</div><div style="font-size: 13px; "><br></div><div><div>
<div style="font-size: 18px; "><div><div><div><div>---------------<br>Bernard CHAMBON<br>IN2P3 / CNRS<br>04 72 69 42 18<br></div></div></div></div></div>
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