Parallel Three-Dimensional Fast Fourier Transforms 2.2 (Default branch)


 
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Old 04-15-2008
Parallel Three-Dimensional Fast Fourier Transforms 2.2 (Default branch)

Parallel Three-Dimensional Fast FourierTransforms, dubbed P3DFFT, is a library forcomputing 3D FFTs using 2D (pencil) decomposition.It is written using Fortran with MPI, and is tunedto work on multiple single-CPU systems (up to32768 of them). It is built to leveragehigh-performance serial 1D FFT libraries, such asFFTW or ESSL.License: Public DomainChanges:
This version provides accurate treatment of the 0 and N/2 modes in the complex sequence in Fourier space.Image

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MPI_Status_f2c(3)						      LAM/MPI							 MPI_Status_f2c(3)

NAME
MPI_Status_f2c - Convert a status from its Fortran representation to its C representation SYNOPSIS
#include <mpi.h> int MPI_Status_f2c(MPI_Fint *f_status, MPI_Status *c_status) INPUT PARAMETER
f_status - Fortran status OUTPUT PARAMETER
c_status - C status NOTES FOR FORTRAN
All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have an additional argument ierr at the end of the argument list. ierr is an integer and has the same meaning as the return value of the routine in C. In Fortran, MPI routines are subroutines, and are invoked with the call statement. All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in Fortran. ERRORS
If an error occurs in an MPI function, the current MPI error handler is called to handle it. By default, this error handler aborts the MPI job. The error handler may be changed with MPI_Errhandler_set ; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned (in C and Fortran; this error handler is less useful in with the C++ MPI bindings. The predefined error handler MPI::ERRORS_THROW_EXCEPTIONS should be used in C++ if the error value needs to be recovered). Note that MPI does not guarantee that an MPI program can continue past an error. All MPI routines (except MPI_Wtime and MPI_Wtick ) return an error value; C routines as the value of the function and Fortran routines in the last argument. The C++ bindings for MPI do not return error values; instead, error values are communicated by throwing exceptions of type MPI::Exception (but not by default). Exceptions are only thrown if the error value is not MPI::SUCCESS . Note that if the MPI::ERRORS_RETURN handler is set in C++, while MPI functions will return upon an error, there will be no way to recover what the actual error value was. MPI_SUCCESS - No error; MPI routine completed successfully. SEE ALSO
MPI_Status_c2f(3) MORE INFORMATION
For more information, please see the official MPI Forum web site, which contains the text of both the MPI-1 and MPI-2 standards. These documents contain detailed information about each MPI function (most of which is not duplicated in these man pages). http://www.mpi-forum.org/ LOCATION
handles.c LAM
/MPI 7.1.4 6/24/2006 MPI_Status_f2c(3)