Picture of twitter being down

http://users.nccs.gov/~zzhang3/twitter_down.jpg

Compiling and using shared libraries on Juguar

To link to a dynamic library, besides the -L <path_to_lib>and -l<name_of_lib>, also remember to use -Bdynamic! It is because Jaguar is using pgcc for parallel programs.

It took me at least 5 hours to find out. Google rocks...

But Jaguar compute nodes cannot load the dynamic library. So look at this page for linking to static library.

Submitting job to jaguarpf

1. Use this job script (test.pbs)



#PBS -A STF008
#PBS -N test
#PBS -j oe
#PBS -l walltime=1:00:00,size=12

cd /lustre/widow1/scratch/zzhang3
date
env IOTA_LOGFILE=/lustre/widow1/scratch/zzhang3/output aprun -n 12 ./pi




2. Submit it using qsub test.pbs


3. Monitor the job status using qstat -a