PAPI_get_hardware_info(3)

.PP

Section 3 libpapi-dev bookworm source

Description

PAPI_get_hardware_info

NAME

PAPI_get_hardware_info -

get information about the system hardware

SYNOPSIS

Detailed Description

In C, this function returns a pointer to a structure containing information about the hardware on which the program runs. In Fortran, the values of the structure are returned explicitly.

Return values:

PAPI_EINVAL One or more of the arguments is invalid.

Note:

The C structure contains detailed information about cache and TLB sizes. This information is not available from Fortran.

Examples:

const PAPI_hw_info_t *hwinfo = NULL;
if (PAPI_library_init(PAPI_VER_CURRENT) != PAPI_VER_CURRENT)
exit(1);
if ((hwinfo = PAPI_get_hardware_info()) == NULL)
exit(1);
printf("%d CPUs at %f Mhz.\n",hwinfo->totalcpus,hwinfo->mhz);

See Also:

PAPI_hw_info_t

PAPI_get_executable_info, PAPI_get_opt, PAPI_get_dmem_info, PAPI_library_init

Author

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