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Parallel Programming in C with MPI and OpenMP

Parallel Programming in C with MPI and OpenMP. Michael J. Quinn. Chapter 8. Matrix-vector Multiplication. Chapter Objectives. Review matrix-vector multiplicaiton Propose replication of vectors Develop three parallel programs, each based on a different data decomposition. Outline.

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Collectives

Collectives. Reduce Scatter Gather Many more. Prototype of MPI_Reduce(). int MPI_Reduce ( void *operand, /* addr of 1st reduction element */ void *result, /* addr of 1st reduction result */ int count,

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216 views • 17 slides

MPI_Gatherv

MPI_Gatherv. CISC372 Fall 2006 Andrew Toy Tom Lynch Bill Meehan. Before. Before. After. Syntax of MPI_Gatherv. int MPI_Gatherv ( void *sendbuf, int sendcnt, MPI_Datatype sendtype, void *recvbuf, int *recvcnts, int *displs, MPI_Datatype recvtype, int root, MPI_Comm comm ).

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967 views • 14 slides

MPI_Gatherv

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386 views • 14 slides

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Parallel Programming in C with MPI and OpenMP

Collectives

MPI_Gatherv

MPI_Gatherv