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Edison Phase II Compute Cabinets Arrive at NERSC

June 27, 2013 by Zhengji Zhao (1 Comments)

The compute cabinets were shiped to NERSC between June 24 and 25, 2013.They have been installed on the machine room floor in Oakland. The 28 canbinets that comprise the Phase II system were powered up on June 27, 2013.


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  • I re-compiled my program on Edison with Intel compiler.

    Once submitted the job, the waiting time in the regular queue was very short compared to Hopper.

    The run on Edison was smooth and with no problems. Comparing the CPU time for the run, I found that the job run almost twice as faster as in Hopper (using PGI compilers). (In Edison it took 111 seconds and in Hopper/PGI 203 seconds)

    So, to have a fair comparison in term of CPU time, I recompiled in Hopper with Intel compilers since Edison uses Intel compilers by default. The computing time in Hopper (using Intel compiler) was longer = 231 seconds.

    So I found that my program (CMAD) in Edison runs twice as faster than in Hopper. This is excellent improvement!

    Posted by Mauro Pivi, 29/08/2013 2:09am (12 months ago)

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