Opened 8 years ago
Closed 8 years ago
#11074 closed Bugs (duplicate)
boost::mpi an order of magnitude slower than pure MPI for sending vector of doubles
| Reported by: | Owned by: | Matthias Troyer | |
|---|---|---|---|
| Milestone: | To Be Determined | Component: | mpi |
| Version: | Boost 1.57.0 | Severity: | Not Applicable |
| Keywords: | Cc: |
Description
As detailed in my email to boost users (h ttp://lists.boost.org/boost-users/2015/02/83807.php) it seems to take an order of magnitude longer to send a vector of doubles using boost::mpi than it takes using C bindings of MPI. I couldn't find anything in the documentation about optimizing transfers of standard types so I'd assume they are already optimized but that doesn't seem to be the case. Am I missing something or is there a serious performance issue in boost::mpi when sending (largeish) vectors of standard or more complex types?
Change History (2)
comment:1 by , 8 years ago
| Severity: | Problem → Not Applicable |
|---|
comment:2 by , 8 years ago
| Resolution: | → duplicate |
|---|---|
| Status: | new → closed |
Note:
See TracTickets
for help on using tickets.
Sorry for the double post, I wasn't getting a reply from trac so tried again...