Hi Matthieu, Those CONSEC and SEQ counters refer to POSIX operations. The total number of POSIX operations can be found by adding CP_POSIX_READS and CP_POSIX_FREADS. The SPLIT/COLL/NB/INDEP counters refer to MPI-IO operations, which would be tricky to directly relate to the POSIX CONSEC and SEQ fields. Sorry for the confusing naming scheme here; its hard to tell which things are POSIX vs MPI-IO on some of these counters. -Phil On 07/22/2014 07:47 AM, Matthieu Dorier wrote:

Hi,

I see that Darshan has CP_CONSEC_READS and CP_SEQ_READS counters to count the number of consecutive and sequential reads. I would like to compute the number of non-consecutive and non-sequential reads but it is unclear to me which counters I should use to compute the total number of reads from which to substract the number of consecutive/sequential. For instance are CP_SPLIT_READS already counted in CP_COLL_READS? Are CP_NB_READS already counted in CP_INDEP_READS? etc.

Can you help? Thanks!

Matthieu Dorier PhD student at ENS Rennes http://people.irisa.fr/Matthieu.Dorier