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Parallel IO worked on. I'm puzzled because I already thought I shook this out on MacOS + OpenMPI and then

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turned up problems on the BlueWaters Cray.

Gets 75MB/s from home filesystem on parallel configuration read. Need to make the RNG IO parallel,
and also to look at aggregating bigger writes for the parallel write.
Not sure what the home filesystem is.
This commit is contained in:
Peter Boyle
2016-02-21 08:03:21 -06:00
parent 40f2db9bc0
commit 6aeaf6f568
6 changed files with 160 additions and 80 deletions
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11
lib/communicator/Communicator_base.h
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@ -120,12 +120,11 @@ class CartesianCommunicator {
int recv_from_rank,
int bytes);
void RecvFrom(void *recv,
int recv_from_rank,
int bytes);
void SendTo(void *xmit,
int xmit_to_rank,
int bytes);
void SendRecvPacket(void *xmit,
void *recv,
int xmit_to_rank,
int recv_from_rank,
int bytes);
void SendToRecvFromBegin(std::vector<CommsRequest_t> &list,
void *xmit,