Difference between revisions of "UTK multicores + GPU"
From HCL
Zhongziming (talk | contribs) |
Zhongziming (talk | contribs) |
||
| Line 24: | Line 24: | ||
* Building performance model: | * Building performance model: | ||
| − | - Rankfile is for | + | - Rankfile is for [http://www.open-mpi.org/doc/v1.6/man1/mpirun.1.php#toc8 process binding], and appfile tells mpi what programs to launch |
$ mpirun -rf rankfile -app appfile_fpm | $ mpirun -rf rankfile -app appfile_fpm | ||
| − | - | + | - Example of a rankfile: |
rank 0=ig.icl.utk.edu slot=0:0 | rank 0=ig.icl.utk.edu slot=0:0 | ||
rank 1=ig.icl.utk.edu slot=0:1 | rank 1=ig.icl.utk.edu slot=0:1 | ||
... | ... | ||
| − | - | + | - Example of an appfile for building functional permanence model (appfile_fpm): |
# GPU | # GPU | ||
# e.g. Linking against cublas, and fupermod is configured under cublas_config | # e.g. Linking against cublas, and fupermod is configured under cublas_config | ||
| Line 51: | Line 51: | ||
$ mpirun -rf rankfile -app appfile_mxm | $ mpirun -rf rankfile -app appfile_mxm | ||
| − | - | + | - Example of an appfile for matrix multiplication (appfile_mxm) |
# GPU | # GPU | ||
# Assuming fupermod is configured under cublas_config, linking against cublas | # Assuming fupermod is configured under cublas_config, linking against cublas | ||
Revision as of 12:57, 12 July 2012
List of machines
http://icl.cs.utk.edu/iclhelp/custom/index.html?lid=97&slid=180
Display a list of available GPUs
$ nvidia-smi -L
Using Fupermod on hybrid multicore/GPUs node
- Compiling : Create two separate directories for configuration with selected CPU cblas (e.g. gsl, acml, mkl) and GPU cblas (e.g. cublas).
- For example: configuring with acml for CPU and cublas for GPU
$ cd fupermod/
$ mkdir acml_config $ cd acml_config $ ../configure --with-cblas=acml $ make
$ mkdir cuda_config $ cd cuda_config $ ../configure --with-cblas=cuda $ make
- Building performance model:
- Rankfile is for process binding, and appfile tells mpi what programs to launch
$ mpirun -rf rankfile -app appfile_fpm
- Example of a rankfile:
rank 0=ig.icl.utk.edu slot=0:0 rank 1=ig.icl.utk.edu slot=0:1 ...
- Example of an appfile for building functional permanence model (appfile_fpm):
# GPU # e.g. Linking against cublas, and fupermod is configured under cublas_config # suboption g=0 means device 0 is selected for computing -host localhost -np 1 $HOME/fupermod/cublas_config/tools/builder -l $HOME/fupermod/cublas_config/routines/mxm/.libs/libmxm_col.so -o k=640,g=0 -U10000 -s10 # CPU # e.g. Linking against acml, and fupermod is configured under acml_config -host localhost -np 47 $HOME/fupermod/acml_config/tools/builder -l $HOME/fupermod/acml_config/routines/mxm/.libs/libmxm_col.so -o k=640 -U10000 -s10
- Data partitioning
- Matrix size D = N x N, and machinefile lists the nodes participating in the computing
$ fupermod/tools/partitioner -l fupermod/routines/mxm/.libs/libmxm_col.so -D10000 -o N=100 -m machinefile
- Running matrix multiplication
$ mpirun -rf rankfile -app appfile_mxm
- Example of an appfile for matrix multiplication (appfile_mxm)
# GPU # Assuming fupermod is configured under cublas_config, linking against cublas # -g0 means device 0 is selected for computing -host localhost -np 1 $HOME/fupermod/cublas_config/routines/mxm/mxm_col -k640 -g0 -m machinefile # CPU # Assuming fupermod is configured under acml_config, linking against acml -host localhost -np 47 $HOME/fupermod/acml_config/routines/mxm/mxm_col -k640 -m machinefile
