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Subject: [OMPI users] mmap and MPI_File_Read
From: Andreas Bok Andersen (bok.chan_at_[hidden])
Date: 2013-02-02 03:52:37


I am using Open-MPI in a parallelization of matrix multiplication for large
matrices.
My question is:
- Is MPI_File_read using mmapping under the hood when reading a binary
file.
- Or is the better/most efficient solution to read the input files using
the native mmap in C++

Best Andreas