SGI UV300 Platform file

Commands and Options Used to Submit Benchmark Runs

dplace -x2 $command
dplace is a tool for binding processes to cpus
Here is a brief description of options used in the config file:

Shell, Environment, and Other Software Settings

Specify stack size to be allocated for each thread.
The value for the environment variable KMP_AFFINITY affects how the threads from an auto-parallelized program are scheduled across processors.
Specifying disabled completely disables the thread affinity interfaces. This forces the OpenMP run-time library to behave as if the affinity interface was not supported by the operating system. This includes the low-level API interfaces such as kmp_set_affinity and kmp_get_affinity, which have no effect and will return a nonzero error code.
Fine tune the load balancing of parallel loops that are statically scheduled under OpenMP with no chunk size specification.
Setting it to "static,balanced" results in (#iterations/#threads) iterations--rounded to the next lower integer--being allocated to most threads, with at most one additional iteration being allocated to some threads. Although the largest number of iterations assigned to any thread remains the same, this results in a more even sharing of iterations between threads, which may sometimes lead to a performance improvement relative to the default static thread distribution.
OMP_DYNAMIC=[ 1 | 0 ] Enables (1) or disables (0) the dynamic adjustment of the number of threads.
Set stack size to unlimited
The command "ulimit -s unlimited" is used to set the stack size limit to unlimited.

Firmware / BIOS / Microcode Settings

Hyper-Threading (Default = "Enabled")
This feature allows enabling/disabling of logical processor cores on processors supporting Intel's Hyperthreading Technology.

BT Mode (Default = "Force mode 0")
The BT mode controls relative allocations of processor/QPI-related resources. UV 300 supports two modes of operation for the BT: