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High Performance Computing
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November 7, 2009
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- 03/30/07 : Per previous announcements, the SDX/XC systems
are no longer available.
Old SDX accounts and files have been migrated to the new IBM system
( BCX ).
- The IBM cluster login nodes can be accessed at host alias: bcx.uky.edu
- In order to authenticate (login) to the new IBM Intel commodity
cluster (bcx.uky.edu) you must use your Link-Blue (aka e-Dir)
credentials (password). Note: your HPC and Link-Blue account name must
match! If they don't, contact the Help address below.
Once you authenticate the first time, you may set up an ssh public key to
authenticate from then on if you desire (or continue to use your
Link-Blue passwd). If you have not already changed
your default Link-Blue password, please change it now using the
passwd command. Please note that making the
password change on the BCX system will propagate to your Link-Blue account.
If you already have a non-temporary Link-Blue password assigned it will
not be necessary to do this. -
- The BCX (Intel commodity cluster) nodes have 8GB of memory
(each); ie 2GB per core. If your memory requirements for
non-distributed code exceeds that, you will need to port your code to
the P-series (IBM PowerPC) 32-way SMP machines.
- To see important system related notices, use the
sysstatus command when on the system.
- General job examples: (see: /share/cluster/examples)
BCX - Intel commodity cluster:
- To compile Fortran (F90), use ifort (Intel Fortran).
- To compile for OpenMPI use mpif90,mpicc
- BLAS and LAPACK functions are available via the Intel MKL libraries.
- To link with Intel MKL, use -L$(INTEL_MKL_LIBS) in your makefile
along with: -lmkl
- To link LAPACK, link MKL above along with: -lmkl_lapack
- Intel MKL docs here:
/share/cluster/SLES9/x86_64/apps/intel/mkl_docs.d
P-series - 32-way SMP's (8 servers):
- from a BCX login node: ssh plogin
no password required.
- To link LAPACK, see:
hpcadmin:/share/cluster/examples/p-series/lapack
- Batch scheduler:
- Note: LSF is no longer the batch
software; LSF has been replaced by (Moab+SLURM) ; see the
examples above.
- bjobs (ie LSF commands) are no longer available; use showq
or squeue to check job queues.
- use srun script to submit a job. (see /share/cluster/examples)
- To kill a job:
- bkill job_id_from_showq
or
- squeue -u your_user_id (to get job_id)
- scancel job_id
The HP VED editor is no longer available; the
closest replacement we have at this time is NEdit.
Send comments/questions to:
help-hpc@uky.edu
Last modified: September 25 2009 11:27:36.