LAM/MPI General User's Mailing List Archives

From: Lingyan Zhang (lingyan_at_[hidden])
Date: 2003-07-04 14:37:49

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• Reply: Jeff Squyres: "Re: LAM: question about Datatype::Commit()"

Hi,

When I commit a struct, I got run time error says "invalid datatype argument".
Does any one can tell me why? Here is the source code

MPI::Datatype MPI_A, types[2] = {MPI::INT, MPI::INT};
int blockLength[2] = {1, 1};
MPI::Aint local[2];
MPI::Aint lb, extent;
MPI::INT.Get_extent(lb, extent);
local[0] = (MPI_Aint) 0;
local[1] = extent;
MPI_A.Create_struct(2, blockLength, local, types);
MPI_A.Commit();

Thanks.
Lingyan

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• Reply: Jeff Squyres: "Re: LAM: question about Datatype::Commit()"