PetscErrorCode PetscBinarySynchronizedWrite(MPI_Comm comm,int fd,void *p,PetscInt n,PetscDataType type,PetscBool istemp)Collective on MPI_Comm Many br
comm | - the MPI communicator Many br | |
fd | - the file Many br | |
n | - the number of items to write Many br | |
p | - the buffer Many br | |
istemp | - the buffer may be changed Many br | |
type | - the type of items to write (PETSC_INT, PETSC_DOUBLE or PETSC_SCALAR) Many br |
Many br
PetscBinarySynchronizedWrite() uses byte swapping to work on all machines. Many brIntegers are stored on the file as 32 long, regardless of whether Many brthey are stored in the machine as 32 or 64, this means the same Many brbinary file may be read on any machine. Many br
Notes: because byte-swapping may be done on the values in data it cannot be declared const Many br
WARNING: This is NOT like PetscSynchronizedFPrintf()! This routine ignores calls on all but process 0, Many brwhile PetscSynchronizedFPrintf() has all processes print their strings in order. Many br
Level:developer
Location:src/sys/fileio/sysio.c
Index of all Sys routines
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