Know issues

Ansys DesignModeler with hardware acceleration is not working.

With Ansys version greater than 19.1, DesignModeler is working with software rendering mode, but it is very slow.

 ... Read more

The CUDA debugger, cuda-gdb, can raise a segmentation fault immediately upon execution.  A workaround before executing cuda-gdb is to unload the xalt module, e.g.: 

module unload... Read more          

Users may encoutner an error like 'libim_client.so: undefined reference to `uuid_unparse@UUID_1.0' while compiling MPI applications with mvapich2 in some Conda enivronments. We found pre-installed... Read more

NCBI blocks any connection from computing nodes because they are behind firewalls. Thus OSC users cannot use SRA tools to download data "on-the-fly" at runtime on computing nodes, e.g. 'fastq-dump... Read more

Gaussian-4 (G4) theory calculations in Gaussian 16 Rev. B.01 can produce erratic results.  A workaround is to use Gaussian 16 Rev. A.03 or Rev. C.01, e.g.: 

module load gaussian/... Read more          

Users may encounter under-performing MPI jobs or failures of compiling MPI applications if you are using Conda from system. We found pre-installed mpich2 package in some Conda environments ... Read more

3:30 PM 5/10/2018 Original Post:

User may have been getting the following error message when trying to submit a PBS job using job arrays:

qsub: submit error (Maximum number of... Read more          

... Read more

LAMMPS 14May16 on Owens can hang when using the velocity command.  Inputs that hang on Owens work on Oakley and Ruby.  LAMMPS 31Mar17 on Owens also works.  Here is an example failing input snippet... Read more

We have found that large MPI jobs may hang at startup with mvapich2/2.3 and mvapich/2.3.1 (on any compiler dependency) due to a known bug that has been fixed in release 2... Read more