petsc-3.4.5 2014-06-29


Opens an AMS memory snooper PetscViewer.


#include "petscsys.h"  */
PetscErrorCode PetscViewerAMSOpen(MPI_Comm comm,const char name[],PetscViewer *lab)
Collective on MPI_Comm

Input Parameters

comm - the MPI communicator
name - name of AMS communicator being created if NULL is passed defaults to PETSc

Output Parameter

lab -the PetscViewer

Options Database Keys

-ams_port <port number> - port number where you are running AMS client
-xxx_view ams - publish the object xxx
-xxx_ams_block - blocks the program at the end of a critical point (for KSP and SNES it is the end of a solve) until the user unblocks the the problem with an external tool that access the object with the AMS
-ams_java - open JAVA AMS client

Fortran Note

This routine is not supported in Fortran.

See the matlab/petsc directory in the AMS installation for one example of external tools that can monitor PETSc objects that have been published.


Unlike other viewers that only access the object being viewed on the call to XXXView(object,viewer) the AMS viewer allows one to view the object asynchronously as the program continues to run. One can remove AMS access to the object with a call to PetscObjectAMSViewOff().

Information about the AMS is available via

See Also

PetscViewerDestroy(), PetscViewerStringSPrintf(), PETSC_VIEWER_AMS_(), PetscObjectAMSBlock(),
PetscObjectAMSViewOff(), PetscObjectAMSTakeAccess(), PetscObjectAMSGrantAccess()

Index of all Viewer routines
Table of Contents for all manual pages
Index of all manual pages