Eiger: Difference between revisions

Eiger (view source)

Revision as of 14:16, 21 February 2017

1,127 bytes added , 21 February 2017

→‎Xeon Phi (Knights Landing, KNL): updates

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 The benchmark was run on a single KNL7210 processor (256 cores) set to quadrant mode and using the MCDRAM as cache. XDS was compiled with the -xMIC-AVX512 option of ifort. 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
 when run with MAXIMUM_NUMBER_OF_JOBS=16 and MAXIMUM_NUMBER_OF_PROCESSORS=16. These parameters, as well as the KNL setup could still be optimized.
+Update Feb 21, 2017 using XDS BUILT=20161205
+ INIT:            elapsed wall-clock time       33.4 sec
+ COLSPOT:         elapsed wall-clock time       49.3 sec
+ INTEGRATE: total elapsed wall-clock time       59.8 sec
+Now using Dectris' library (v. 20170215) with <code>LIB=/usr/local/lib64/dectris-neggia.so</code>:
+ INIT:            elapsed wall-clock time       30.4 sec
+ COLSPOT:         elapsed wall-clock time       40.7 sec
+ INTEGRATE: total elapsed wall-clock time       52.9 sec
+Now additionally running with <code>numactl --preferred=1 xds_par</code> after having modified the forkintegrate script such that it starts mintegrate_par with the same numactl parameters:
+ INIT.LP:         elapsed wall-clock time       29.8 sec
+ COLSPOT:         elapsed wall-clock time       40.0 sec
+ INTEGRATE: total elapsed wall-clock time       51.3 sec
+This was running with a 8GB/8GB split MCDRAM. The same run, but with 8 JOBs and 32 PROCESSORS, takes
+ INIT.LP:         elapsed wall-clock time       25.3 sec
+ COLSPOT:         elapsed wall-clock time       40.1 sec
+ INTEGRATE: total elapsed wall-clock time       53.1 sec
 == Troubleshooting ==