Manfred Muecke wrote:
I would like to understand in more detail how much time some collective
communication calls really spend waiting for the last process to enter. I
know this can be done by logging entry times for each process, but I
wonder if there is a better and more efficient way.
"Bette
Hello Manfred,
this is more a MPI-Standardization question, Open MPI happens to be (the
only?) one implementation providing Peruse,
While there are people using Peruse event tracing to collect information on
collectives in Open MPI, however, these are not in trunk.
The specification itself has n
Hello *,
I would like to understand in more detail how much time some collective
communication calls really spend waiting for the last process to enter. I
know this can be done by logging entry times for each process, but I
wonder if there is a better and more efficient way.
The peruse interface