Performance: Difference between revisions

Jump to navigation Jump to search
no edit summary
No edit summary
No edit summary
Line 12: Line 12:
# performance-wise, I/O also plays a role because as soon as you run 24 or so processes then a single GB ethernet connection may be limiting. OTOH shell-level parallelization smoothes the load.
# performance-wise, I/O also plays a role because as soon as you run 24 or so processes then a single GB ethernet connection may be limiting. OTOH shell-level parallelization smoothes the load.
# REFINE(INTEGRATE)= ! (empty list) makes INTEGRATE go much faster through the frames, since frames are processed less often when analyzing a batch of frames, and no geometry refinement takes place.
# REFINE(INTEGRATE)= ! (empty list) makes INTEGRATE go much faster through the frames, since frames are processed less often when analyzing a batch of frames, and no geometry refinement takes place.
# XDS with the MAXIMUM_NUMBER_OF_JOBS keyword can use several machines. This requires some setup as explained at the bottom of [http://www.mpimf-heidelberg.mpg.de/~kabsch/xds/html_doc/downloading.html].
# XDS with the MAXIMUM_NUMBER_OF_JOBS keyword can use [[Performance#Cluster|several machines]]. This requires some setup as explained at the bottom of [http://www.mpimf-heidelberg.mpg.de/~kabsch/xds/html_doc/downloading.html].
# Hyperthreading (SMT), if available on Intel CPUs, is beneficial. A "virtual" core has only about 20% performance of a "physical" core but it comes at no cost - you just have to switch it on in the BIOS of the machine.
# Hyperthreading (SMT), if available on Intel CPUs, is beneficial. A "virtual" core has only about 20% performance of a "physical" core but it comes at no cost - you just have to switch it on in the BIOS of the machine.
# The 64-bit binaries generally are a bit faster than the 32-bit binaries (but that's not specific for XDS). The latter are no longer distributed anyway.
# The 64-bit binaries generally are a bit faster than the 32-bit binaries (but that's not specific for XDS). The latter are no longer distributed anyway.
2,684

edits

Cookies help us deliver our services. By using our services, you agree to our use of cookies.

Navigation menu