<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Please note that there are places in the HDF5 code that when compiled
with HDF5 Parallel options turned on, expect an MPI communicator to be
supplied prior to use. Certain vtk/hdf/xdmf type classes when run on a
single machine (but with mpi/hdf etc suppport - but not using mpirun)
do not set the communicator and can cause problems.<br>
<br>
In general reading (from multiple nodes) will not be a concern since
you are ususally using a serial interface through a shared file system,
but writing does require some care. Parallel IO is not required for
reading (if the file is shared anyway), but may improve performance if
your system has a parallel file system. Parallel write will not work
without Parallel IO.<br>
<br>
JB<br>
<br>
<blockquote
cite="mid:0BA5ECE2D409814B9A324DDEDA2C29FC1F9A3D9E5D@ES04SNLNT.srn.sandia.gov"
type="cite">
<pre wrap="">You may be happier by upgrading your MPI to something that supports MPI I/O. Parallel IO can make a big difference.
-Ken
</pre>
<blockquote type="cite">
<pre wrap="">-----Original Message-----
From: Kent Eschenberg [<a class="moz-txt-link-freetext" href="mailto:eschenbe@psc.edu">mailto:eschenbe@psc.edu</a>]
Sent: Tuesday, February 12, 2008 9:26 AM
To: Moreland, Kenneth
Cc: ParaView
Subject: Re: [Paraview] Can These Options Be Combined in 3.2.1?
Thanks! Removing the request for parallel HDF allowed it to work.
Kent
Moreland, Kenneth wrote:
> The first three definitely work together. I haven't done anything with
parallel HDF myself, but I can think of no reason why it should not work.
>
> MPI_MODE_RDWR is part of MPI 2. Perhaps your implementation of MPI
does not
fully support all of the MPI 2 extensions (in particular the MPI I/O
functions
and definitions).
>
> -Ken
>
>> -----Original Message-----
>> From: <a class="moz-txt-link-abbreviated" href="mailto:paraview-bounces+kmorel=sandia.gov@paraview.org">paraview-bounces+kmorel=sandia.gov@paraview.org</a>
[<a class="moz-txt-link-freetext" href="mailto:paraview">mailto:paraview</a>-
>> <a class="moz-txt-link-abbreviated" href="mailto:bounces+kmorel=sandia.gov@paraview.org">bounces+kmorel=sandia.gov@paraview.org</a>] On Behalf Of Kent Eschenberg
>> Sent: Friday, February 08, 2008 10:16 AM
>> To: ParaView
>> Subject: [Paraview] Can These Options Be Combined in 3.2.1?
>>
>> Can these options coexist in ParaView 3.2.1?
>>
>> - MPI
>> - Python wrapping (to get pvbatch)
>> - shared libraries (required for Python)
>> - parallel HDF (seems like a good idea)
>>
>> On a 64-bit CentOS system "make" fails with this:
>>
>> [ 24%] Building C object
Utilities/hdf5/CMakeFiles/vtkhdf5.dir/H5FDmpio.o
>> /usr/local/packages/paraview/3.2.1/src/Utilities/hdf5/H5FDmpio.c: In
>> function
>> 'H5FD_mpio_open':
>> /usr/local/packages/paraview/3.2.1/src/Utilities/hdf5/H5FDmpio.c:772:
>> error:
>> 'MPI_MODE_RDWR' undeclared (first use in this function)
>>
>> plus a few more similar ones.
>>
>> TIA!
>> Kent
>> Pittsburgh Supercomputing Center
</pre>
</blockquote>
<pre wrap=""><!---->
_______________________________________________
ParaView mailing list
<a class="moz-txt-link-abbreviated" href="mailto:ParaView@paraview.org">ParaView@paraview.org</a>
<a class="moz-txt-link-freetext" href="http://www.paraview.org/mailman/listinfo/paraview">http://www.paraview.org/mailman/listinfo/paraview</a>
</pre>
</blockquote>
<br>
<br>
<pre class="moz-signature" cols="78">--
John Biddiscombe, email:biddisco @ cscs.ch
<a class="moz-txt-link-freetext" href="http://www.cscs.ch/about/BJohn.php">http://www.cscs.ch/about/BJohn.php</a>
CSCS, Swiss National Supercomputing Centre | Tel: +41 (91) 610.82.07
Via Cantonale, 6928 Manno, Switzerland | Fax: +41 (91) 610.82.82</pre>
</body>
</html>