Compaq HPC 320
The SPECchem96_SM benchmark was run by
(SPEC license #2) in Marlborough, MA, USA on a HPC 320 on 28-Dec-1999. This code was run using the message programming model.
Elapsed Time (secs)
* The SPECchem96_SM metric is 86400/elapsed seconds.
Source code base was SPEChpc96.1.0.
500MHz EV6 Alpha
1 node 4GB, 1 node 2GB
An HPC 320 consists of 8 ES40 quad processor building blocks integrated via Memory Channel II System Area Network.
Tru64 UNIX V4.0F-1229
Compaq Fortran V5.2-829
DEC C V5.9-005
Digital MPI / TruCluster 1.6
The TruCluster software implements the Memory Channel link between the ES40s.
RUN TOOLS USED:
COMPILE AND LOAD FLAGS
Fortran compiler flags:
-omp -fixed -i8 -l8 -O5 -inline speed -om -WL,-om_no_inst_sched -non_shared -pipeline -tune ev6 -unroll 1 -recursive -align commons -assume noaccuracy_sensitive -math_library fast -notransform_loops -v
C compiler flags:
-mp -lfmpi -lmpi -lrt -pthread -lm -lc
SOURCE FILE MODIFICATIONS
Prior TSGMSG PVM message passing code replaced with MPI implementation. OpenMP directives same as for previously approved ES40 submissions.
OS configuration modified to allow additional stack space and data space per process.
As previously approved, this code has substantial modifications to include the OpenMP directives. A gzip file of the entire source has been submitted. In order to duplicate these results under the SPEChpc run rules, set mode=serial and adjust OMP_NUM_THREADS in MPIexec and MPIexec.slave.X to control the parallelism.
SPEC High Performance Group