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Showing results 1 to 9 of 9 Search took 0.00 seconds. Search: Posts Made By: pablodecastillo

Forum: Hardware April 27, 2012, 13:05

Replies: 18 mpirun, best parameters Views: 19,810 Posted By pablodecastillo Hi Joshua, For tests, i disconected... Hi Joshua, For tests, i disconected everything who was writing to hard disk, just when finish the calculation. Only i used mpirun -np 8 numactl --cpunodebind=0 myApp, i was trying writing file...

Forum: Hardware April 26, 2012, 12:23

Replies: 18 mpirun, best parameters Views: 19,810 Posted By pablodecastillo Thanks Charles Thanks Charles

Forum: Hardware April 26, 2012, 10:05

Replies: 18 mpirun, best parameters Views: 19,810 Posted By pablodecastillo Charles, it is the machine; 4 x AMD OpteronTM... Charles, it is the machine; 4 x AMD OpteronTM 16 Core 6274. 2.2Ghz 16MB 115W 32nm 16 x 4GB DDR3 1333 ECC REG Is it possible to known how can improve it to move to 1666?

Forum: Hardware April 26, 2012, 07:40

Replies: 18 mpirun, best parameters Views: 19,810 Posted By pablodecastillo Hello Joshua, I followed your indications,... Hello Joshua, I followed your indications, now i can run 8 jobs at the same time (8 cores per job), every job spending same time to finish, so without loose performance speed dramatically (it is a...

Forum: Hardware April 25, 2012, 13:31

Replies: 18 mpirun, best parameters Views: 19,810 Posted By pablodecastillo Thank you very much Joshua, I will try, if... Thank you very much Joshua, I will try, if it works it is going to be a great news. Pablo

Forum: Hardware April 24, 2012, 04:24

Replies: 18 mpirun, best parameters Views: 19,810 Posted By pablodecastillo Well with -O3 -mprefer-avx128 -ftree-vectorize i... Well with -O3 -mprefer-avx128 -ftree-vectorize i got improve the performance on speed from 15 to 20 %. I am using gcc 4.6, but like allways if i use more than 50% cores, the performance goes down...

Forum: Hardware April 22, 2012, 16:46

Replies: 18 mpirun, best parameters Views: 19,810 Posted By pablodecastillo If really floating point is shared by 2... If really floating point is shared by 2 processors, there is no more to comment, how can i figure out this question? it is 6274 model.

Forum: Hardware April 22, 2012, 15:54

Replies: 18 mpirun, best parameters Views: 19,810 Posted By pablodecastillo It is the machine 4 x AMD OpteronTM 16 Core 6274.... It is the machine 4 x AMD OpteronTM 16 Core 6274. 2.2Ghz 16MB 115W 32nm Now the machine is working, tomorrow i will try affinity like --cpu-set etc ...

Forum: Hardware April 22, 2012, 12:50

Replies: 18 mpirun, best parameters Views: 19,810 Posted By pablodecastillo mpirun, best parameters Hello, I am running a test on 64 cores machine (it is 4 x 16 cores), so every core has a single machine. My mesh is optimized to run in 8 cores (partition 8), so i can run 8 jobs at the same time,...

Showing results 1 to 9 of 9

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