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Performance: Difference between revisions
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# XDS scales well (i.e. the wallclock time for data processing goes down when the number of available cores is increased) in the COLSPOT, IDXREF, INTEGRATE and CORRECT steps when using the [http://www.mpimf-heidelberg.mpg.de/~kabsch/xds/html_doc/xds_parameters.html#MAXIMUM_NUMBER_OF_PROCESSORS= MAXIMUM_NUMBER_OF_PROCESSORS] keyword. This triggers program-level parallelization, using [http://www.openmp.org OpenMP] threads. | # XDS scales well (i.e. the wallclock time for data processing goes down when the number of available cores is increased) in the INIT, COLSPOT, IDXREF, INTEGRATE and CORRECT steps when using the [http://www.mpimf-heidelberg.mpg.de/~kabsch/xds/html_doc/xds_parameters.html#MAXIMUM_NUMBER_OF_PROCESSORS= MAXIMUM_NUMBER_OF_PROCESSORS] keyword. This triggers program-level parallelization, using [http://www.openmp.org OpenMP] threads. | ||
# the program scales very well in the COLSPOT and INTEGRATE steps when using the [http://www.mpimf-heidelberg.mpg.de/~kabsch/xds/html_doc/xds_parameters.html#MAXIMUM_NUMBER_OF_JOBS= MAXIMUM_NUMBER_OF_JOBS] keyword. This triggers a shell-level parallelization. There is a slight penalty associated with high values of MAXIMUM_NUMBER_OF_JOBS= : | # the program scales very well in the COLSPOT and INTEGRATE steps when using the [http://www.mpimf-heidelberg.mpg.de/~kabsch/xds/html_doc/xds_parameters.html#MAXIMUM_NUMBER_OF_JOBS= MAXIMUM_NUMBER_OF_JOBS] keyword. This triggers a shell-level parallelization. There is a slight penalty associated with high values of MAXIMUM_NUMBER_OF_JOBS= : | ||
#*in INTEGRATE, geometry refinement results are not transferred between JOBs: see [[Pathologies]]; | #*in INTEGRATE, geometry refinement results are not transferred between JOBs: see [[Pathologies]]; | ||