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[charm] AMPI and ScaLAPACK

From: Phil Miller <mille121 AT illinois.edu>
To: charm AT cs.uiuc.edu, Loriano Storchi <redo AT thch.unipg.it>
Subject: [charm] AMPI and ScaLAPACK
Date: Wed, 10 Feb 2010 15:08:43 -0600
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List-id: CHARM parallel programming system <charm.cs.uiuc.edu>

The following response was accidentally sent to only our internal list:

---------- Forwarded message ----------
From: Aaron Becker
<abecker3 AT illinois.edu>
Date: Sat, Feb 6, 2010 at 16:01

Some BLACS functions, including dgebr2d and dgebs2d, which are used in
pzhegvx, create a new MPI datatype each time they're called, and
destroy it at the end of the function. AMPI does not handle this
situation correctly at all, and it never reclaims memory from
destroyed datatypes. I think that's the most likely cause of the
problem.

Aaron

[charm] AMPI and ScaLAPACK, Loriano Storchi, 02/06/2010
- Message not available
  - Message not available
    - [charm] AMPI and ScaLAPACK, Phil Miller, 02/10/2010
      - Re: [charm] AMPI and ScaLAPACK, Loriano Storchi, 02/11/2010