[Paraview] Can These Options Be Combined in 3.2.1?

[Kent Eschenberg]

John,

Thanks! I have built two versions of ParaView, one serial and one parallel, and 
so will never need to run the parallel version in serial mode. I'll be using 
this on a parallel file system and so reading in parallel should help.

Kent
Pittsburgh Supercomputing Center

John Biddiscombe wrote:
> 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.
> 
> 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.
> 
> JB
> 
>> You may be happier by upgrading your MPI to something that supports MPI I/O.  Parallel IO can make a big difference.
>>
>> -Ken
>>
>>   
>>> -----Original Message-----
>>> From: Kent Eschenberg [mailto:eschenbe at psc.edu]
>>> 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: paraview-bounces+kmorel=sandia.gov at paraview.org
>>> [mailto:paraview-
>>>  >> bounces+kmorel=sandia.gov at paraview.org] 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