[FLASH-USERS] error with H5P_mpio_actual_io_mode

[Reyes, Adam]

Hi George,

My guess is your build of hdf5 did not enable parallel io. See here <https://github.com/HDFGroup/hdf5/blob/develop/release_docs/INSTALL_parallel> for detailed instructions if you’re building from source, but it should be as simple as configuring something like
CC=/usr/local/mpi/bin/mpicc ./configure --enable-parallel --prefix=<install-directory>

Alternatively you can setup with the serial hdf5 io implementation (not recommended) with “+hdf5” rather than “+hdf5TypeIO” or “+parallelIO”.
*********************************************
Adam Reyes


Code Group Leader, Flash Center for Computational Science  
Research Scientist, Dept. of Physics and Astronomy
University of Rochester
River Campus: Bausch and Lomb Hall, 369  
500 Wilson Blvd. PO Box 270171, Rochester, NY 14627
Email adam.reyes at rochester.edu
Web https://flash.rochester.edu
 (he / him / his)


*********************************************



> On May 3, 2024, at 11:47 PM, George Herrera <g1herrera at ucsd.edu> wrote:
> 
> Hi all,
> 
> I am fairly new to FLASH. I am trying to run the laserslab example using the sphere3D.par file on my local machine. 
> 
> Compiling the object folder gives no problems, but when I go to run the simulation, I get the following error. 
> 
> "./flash4: symbol lookup error: ./flash4: undefined symbol: H5Pget_mpio_actual_io_mode" 
> 
> Any feedback would be appreciated. Thank you.
> 
> --
> George Herrera, PE
> PhD Student | MAE-Engineering Physics
> University of California, San Diego
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