SGI Altix UV Programming, Software, and Libraries FAQ

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• How do I find the version of the Intel compilers?
• When linking Fortran code, I see error messages of the form relocation truncated to fit. What does this mean?
• Where are the commands to compile my MPI program (mpicc, mpif90, etc.)?
• Where can I find out about HDF on Ember?
• How do I use modules on Ember?
• I get error error #10001: could not find directory in which g++ resides when I compile my code in a batch job.
• I get error ld: gcc: No such file or directory when I link my application in a batch job.
• Where can I find a list of Software Applications available on Ember?

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How do I find the version of the Intel compilers?

The -V option displays complete compiler version information. Use -dumpversion to display the compiler version number only.

When linking Fortran code, I see error messages of the form relocation truncated to fit. What does this mean?

This is likely due to the static allocated data or common blocks being over 2GB. Recompile with the flags

    -mcmodel=medium -shared-intel

For more details, see: Avoiding Relocation Errors when Building Applications with Large Global or Static Data on Intel64 Linux.

Where are the commands to compile my MPI program (mpicc, mpif90, etc.)?

The MPI implementation on Ember is SGI's Message Passing Toolkit (MPT). For information on compiling your MPI program, see NCSA's SGI Altix UV Programming Environment web page.

Where can I find out about HDF on Ember?

See information on HDF/HDF5 in the Ember documentation.

How do I use modules on Ember?

See the Modules documentation for information.

I get error error #10001: could not find directory in which g++ resides when I compile my code in a batch job.

The GNU compiler suite (gcc) is not in the default environment on the compute hosts, and the Intel compilers use this. When compiling in batch, add the following line:

module load gcc

to your batch script to load the gcc environment.

I get error ld: gcc: No such file or directory when I link my application in a batch job.

The GNU compiler suite (gcc) is not in the default environment on the compute hosts, and the Intel compilers use this. When compiling or linking in batch, add the following line:

module load gcc

to your batch script to load the gcc environment.

Where can I find a list of Software Applications available on Ember?

The current listing of software applications by area of science can be found on the Software on NCSA HPC Systems page. You can also browse NCSA's software repository directly.