Today August 16th, Tödi is going to be under maintenance from 7:00 AM until 7:00 PM.
The system will be upgraded to the pre-release of SMW7.0, CLE4. 1 and Cuda5.0.
Be aware that you will need to recompile your applications for the new environment. Find below a more detailed description of the upgrade.
Details Tödi Upgrade
custom output of ” apstat ”
users can parse the output of ” apstat ” the way they want with ” -f ” option i.e: apstat -no -f ” NID,Pl,Rv,Hw”
GPU support in CLE4.1:
* CUDA 5.0 API
* Kernel Driver + CUDA library + CUDA Toolkit
* GPU “Modes” exclusive, persistent
* Simultaneous Execution contexts
. Only one CUDA context ( i,e MPI rank ) per node by default
. Multiple contexts support throught CUDA proxy
. set ENV variable CRAY-CUDA_PROXY=1 before aprun
. Limitations include debugging, profiling memory protection
. Feature support is evolving…..
* Memory scrubbing
. Zero GPU memory between jobs
. Automatic, transparent
. Not delivered by NVIDIA as of Aug 01, 2012
. Expect in future update