SPEC CPU Flags Description file for HP HP-UX Compilers

C.11.31.04.2 HP C/aC++ Developer's Bundle

B.11.31.07 HP Fortran 90 Compiler

last updated May-2009

Sections

Selecting one of the following will take you directly to that section:


Optimization Flags


Portability Flags


Compiler Flags


System and Other Tuning Information

HP-UX Kernel Tunables:

maxdsiz, maxdsiz_64bit - maximum size (in bytes) of the data segment for any user process

maxssiz, maxssiz_64bit - maximum size (in bytes) of the stack for any user process

maxrsessiz, maxrsessiz_64bit - maximum size (in bytes) of the RSE stack for any user process

HP-UX System Utilities

mpsched - binds processes to cpus or nodes

setboot - display and modify boot variables in stable storage

System Configuration Commands:

cpuconfig - EFI command to enable or disable a processor prior to booting

Additional Notes on partitions and local memory:
The HP Integrity rx7640, rx8640, and Superdome systems may be configured as one large system or as multiple independent smaller systems via hard parititions (nPars). Each hard partition consists of one or more cells with their associated processors, memory, and I/O chassis, and is isolated from events in other partitions. The memory within a partition can either be assigned to local memory pools for each cell, or to an interleaved pool that is distributed by cache line across the cells. Partitions and their attributes can be created and modified via the support management station, or via the nPartition (par*) commands running on an os instance in a system partition.