Leftover buffered message

[Snowy]

Can someone explain to me if this warning can be avoided 'Leftover
buffered message'? Im getting the right answers but the warning
messages are messing up my output. Could this warning be potentially
dangerous?

Heres a copy of the function that is generating the warning
http://pastebin.com/23KNMwVH

[brycey]

Post by Snowy
Can someone explain to me if this warning can be avoided 'Leftover
buffered message'?  Im getting the right answers but the warning
messages are messing up my output.  Could this warning be potentially
dangerous?
Heres a copy of the function that is generating the warninghttp://pastebin.com/23KNMwVH

Hi this warning just mean you have sent request that haven't been
collected, if you are sure they dont cause a problem with your program
the warnings can be avoided by calling MPI_Cancel on the uneeded
requests.

[Michael Hofmann]

Post by brycey

Post by Snowy
Can someone explain to me if this warning can be avoided 'Leftover
buffered message'? Im getting the right answers but the warning
messages are messing up my output. Could this warning be potentially
dangerous?
Heres a copy of the function that is generating the
warninghttp://pastebin.com/23KNMwVH

Hi this warning just mean you have sent request that haven't been
collected, if you are sure they dont cause a problem with your program
the warnings can be avoided by calling MPI_Cancel on the uneeded
requests.

"Unneeded" requests are freed with MPI_Request_Free. MPI_Cancel only tries
to cancel a pending communication operation and it is still necessary to
complete this communication with MPI_Request_Free, MPI_Wait, MPI_Test, ....


Michael


PS: Is "leftover buffered message" the correct warning message?