On Mar 23, 2013, at 11:50 PM, Matthew Knepley <knepley at gmail.com<mailto:knepley at gmail.com>> wrote:
On Sun, Mar 24, 2013 at 12:24 PM, Blaise A Bourdin <bourdin at lsu.edu<mailto:bourdin at lsu.edu>> wrote: Hi, I am trying to do some scaling tests but can't figure out something about LogSummary: When no custom stages / events are defined, how come "Main Stage" is not 100% of the time? What is not counted? Here is a example of what I get: Library loading? Really? Is there anything I can do to test if it really is library loading or to reduce loading time? I am attaching the full log summary Blaise Matt Summary of Stages: ----- Time ------ ----- Flops ----- --- Messages --- -- Message Lengths -- -- Reductions -- Avg %Total Avg %Total counts %Total Avg %Total counts %Total 0: Main Stage: 2.5763e+03 65.1% 3.2380e+15 100.0% 1.230e+11 100.0% 8.493e+02 100.0% 7.013e+06 97.0% Where is the missing 35% of the time? I call PetscLogBegin right after PetscInitialize. Blaise -- Department of Mathematics and Center for Computation & Technology Louisiana State University, Baton Rouge, LA 70803, USA Tel. +1 (225) 578 1612<tel:%2B1%20%28225%29%20578%201612>, Fax +1 (225) 578 4276<tel:%2B1%20%28225%29%20578%204276> http://www.math.lsu.edu/~bourdin -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener -- Department of Mathematics and Center for Computation & Technology Louisiana State University, Baton Rouge, LA 70803, USA Tel. +1 (225) 578 1612, Fax +1 (225) 578 4276 http://www.math.lsu.edu/~bourdin -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20130324/ae9dde76/attachment-0001.html> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: 450371-logsummary.txt URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20130324/ae9dde76/attachment-0001.txt>
