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authorschnetter <schnetter@2e825fa2-fb71-486d-8b7f-a5ff3f0f6cb8>2006-08-04 14:39:58 +0000
committerschnetter <schnetter@2e825fa2-fb71-486d-8b7f-a5ff3f0f6cb8>2006-08-04 14:39:58 +0000
commit738e46497e17a6fe78b03e4c51fdd7eee4f185af (patch)
tree069337253b79b82deeb09c752948a0fca93b69ec /doc
parentdbe148103042e5637a3eab452c0a8e460b9f9299 (diff)
Introduce a new parameter "use_alltoallv" that decides whether to use
MPI_Alltoallv or to use MPI_Irecv, MPI_Isend, and MPI_Wait to communicate. The latter is not tested, but may be faster if only a few of all processors are involved in the communication. Disable some self tests: Allow processors who do not participate in the communication (who specify a zero slab size) to not know the geometry of the source and destination slabs. git-svn-id: http://svn.cactuscode.org/arrangements/CactusNumerical/Slab/trunk@50 2e825fa2-fb71-486d-8b7f-a5ff3f0f6cb8
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