| sc::MTMPIMemoryGrp(3) | MPQC | sc::MTMPIMemoryGrp(3) |
sc::MTMPIMemoryGrp - This MemoryGrp class requires a MT-safe MPI implementation.
#include <memmtmpi.h>
Inherits sc::ActiveMsgMemoryGrp.
MTMPIMemoryGrp (const Ref< MessageGrp >
&msg, const Ref< ThreadGrp > &th, MPI_Comm
comm=MPI_COMM_WORLD)
Construct a MTMPIMemoryGrp given a MessageGrp, ThreadGrp,
and an MPI communicator. MTMPIMemoryGrp (const Ref<
KeyVal > &)
Construct a MTMPIMemoryGrp given a KeyVal input object. void
activate ()
Activate is called before the memory is to be used. void deactivate ()
Deactivate is called after the memory has been used. void sync ()
Synchronizes all the nodes.
class MTMPIThread
This MemoryGrp class requires a MT-safe MPI implementation.
The default MessageGrp must be a MPIMessageGrp. MPI must be safe with respect to the default ThreadGrp. Alternately, a MessageGrp and a ThreadGrp can be passed to the constructor.
Construct a MTMPIMemoryGrp given a MessageGrp, ThreadGrp, and an MPI communicator. The communicator can be a subset of MPI_COMM_WORLD, in which case, the MessageGrp must refer to the same subset.
Construct a MTMPIMemoryGrp given a KeyVal input object. A fully thread safe MPI is needed (MPI_THREAD_MULTIPLE).
Synchronizes all the nodes. This is useful after remote memory writes to be certain that all of the writes have completed and the data can be accessed locally, for example.
Reimplemented from sc::MsgMemoryGrp.
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| Sun Oct 4 2020 | Version 2.3.1 |