/[escript]/trunk/paso/src/Paso_MPI.h
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Revision 1028 - (view) (annotate) - [select for diffs]
Modified Wed Mar 14 00:15:24 2007 UTC (12 years, 5 months ago) by gross
File length: 791 byte(s)
Diff to previous 971
modifications to be compliant with _WIN32. The substitutes for asinh, acosh, atanh are still missing (erf will through an exception)

Revision 971 - (view) (annotate) - [select for diffs]
Modified Wed Feb 14 04:40:49 2007 UTC (12 years, 6 months ago) by ksteube
File length: 785 byte(s)
Diff to previous 969
Had to undo commit to new MPI branch. The changes went into the original and
not the branch. The files committed here are exactly the same as revision 969.



Revision 969 - (view) (annotate) - [select for diffs]
Modified Tue Feb 13 23:02:23 2007 UTC (12 years, 6 months ago) by ksteube
File length: 813 byte(s)
Diff to previous 790
Parallelization using MPI for solution of implicit problems.

Parallelization for explicit problems has already been accomplished in
the main SVN branch.

This is incomplete and is not ready for use.



Revision 790 - (view) (annotate) - [select for diffs]
Modified Wed Jul 26 23:12:34 2006 UTC (13 years, 1 month ago) by bcumming
File length: 785 byte(s)
Diff to previous 751
changes to escript/py_src/pdetools.py and /escript/src/Data.h/.cpp to
make the Locator work in MPI. escript::Data::mindp now returns a 3 tuple,
with the MPI rank of the process on which the minimum value occurs
included. escript::Data::convertToNumArrayFromDPNo also takes the ProcNo
to perform the MPI reduction.

This had to be implemented in both the MPI and non-MPI versions to allow
the necesary changes to the Python code in pdetools.py. In the non-MPI
version ProcNo is set to 0. This works for the explicit scripts tested
thus far, however if it causes problems in your scripts contact Ben or
Lutz, or revert the three files (pdetools.py, Data.h and Data.cpp) to
the previous version.  



Revision 751 - (view) (annotate) - [select for diffs]
Modified Mon Jun 26 01:46:34 2006 UTC (13 years, 2 months ago) by bcumming
File length: 731 byte(s)
Diff to previous 731
Changes relating to the MPI version of escript
The standard OpenMP version of escript is unchanged

- updated data types (Finley_Mesh, Finley_NodeFile, etc) to store meshes
  over multiple MPI processes.
- added CommBuffer code in Paso for communication of Data associated
  with distributed meshes
- updates in Finley and Escript to support distributed data and operations
  on distributed data (such as interpolation).
- construction of RHS in MPI, so that simple explicit schemes (such as
  /docs/examples/wave.py without IO and the Locator) can run in MPI.
- updated mesh generation for first order line, rectangle and brick
  meshes and second order line meshes in MPI.        
- small changes to trunk/SConstruct and trunk/scons/ess_options.py to
  build the MPI version, these changes are turned off by default.


Revision 731 - (view) (annotate) - [select for diffs]
Added Mon May 15 04:09:52 2006 UTC (13 years, 3 months ago) by bcumming
File length: 579 byte(s)


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