petsc-3.11.3 2019-06-26
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PetscViewerRead

Reads data from a PetscViewer

Synopsis

#include "petscviewer.h" 
PetscErrorCode  PetscViewerRead(PetscViewer viewer, void *data, PetscInt num, PetscInt *count, PetscDataType dtype)
Collective on MPI_Comm

Input Parameters

viewer - The viewer
data - Location to write the data
num - Number of items of data to read
datatype - Type of data to read

Output Parameters

count -number of items of data actually read, or NULL

Notes

If datatype is PETSC_STRING and num is negative, reads until a newline character is found, until a maximum of (-num - 1) chars.

See Also

PetscViewerASCIIOpen(), PetscViewerPushFormat(), PetscViewerDestroy(),
VecView(), MatView(), VecLoad(), MatLoad(), PetscViewerBinaryGetDescriptor(), PetscViewerBinaryGetInfoPointer(), PetscFileMode, PetscViewer

Level

beginner

Location

src/sys/classes/viewer/interface/view.c
Index of all Viewer routines
Table of Contents for all manual pages
Index of all manual pages