Archive for 23rd April 2010

Internal overflow compressing coordinates

I occasionally got this error while running some mpi programs. I could not find the exact reason. Even when I google it, it seems no relevant explanation of it. By investigating the codes with debugger, I notices some data in the memory are huge, when I correct them, the error information was gone too. Therefore I guess this error is related to the expression of illegal numbers. However, I would like to know more about it if someone can point out the exact reason.

An MPI implementation I didn’t know before

DeinoMPI is an implementation of MPI-2 for Microsoft Windows. DeinoMPI is a derived work from MPICH2 provided by Argonne National Lab.  By starting with the MPICH2 code base DeinoMPI inherits a stable and complete implementation of the MPI-2 standard.  DeinoMPI heavily modifies the original code base and does not rely on anything from Argonne National Lab.

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