Eiger: Difference between revisions

121 bytes added ,  22 February 2017
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=== Xeon Phi (Knights Landing, KNL) ===
=== Xeon Phi (Knights Landing, KNL) ===


The benchmark was run on a single KNL7210 processor (256 cores) set to quadrant mode and using the MCDRAM as cache. The environment variable OMP_PROC_BIND was set to false (if this is not done, the scheduler seems to put all threads on one core). XDS was compiled with the -xMIC-AVX512 option of ifort. This gives
The benchmark was run on a single KNL7210 processor (256 cores) set to quadrant mode and using the MCDRAM as cache. The environment variable OMP_PROC_BIND was set to false (if this is not done, the scheduler seems to put all threads on one core). XDS was compiled with the -xMIC-AVX512 option of ifort.  
 
Deviating from the above benchmark setup, BACKGROUND_RANGE was set to a more realistic value of 1 50 (instead of 1 9).
This gives
  COLSPOT:        elapsed wall-clock time      48.3 sec
  COLSPOT:        elapsed wall-clock time      48.3 sec
  INTEGRATE: total elapsed wall-clock time      61.2 sec
  INTEGRATE: total elapsed wall-clock time      61.2 sec
2,652

edits