table of contents
| PAPI_library_init(3) | PAPI | PAPI_library_init(3) |
NAME¶
PAPI_library_init - initialize the PAPI library.
SYNOPSIS¶
Detailed Description¶
Parameters
version upon initialization, PAPI checks the
argument against the internal value of PAPI_VER_CURRENT when the library was
compiled. This guards against portability problems when updating the PAPI
shared libraries on your system.
Return values
PAPI_EINVAL papi.h is different from the
version used to compile the PAPI library.
PAPI_ENOMEM Insufficient memory to complete the operation.
PAPI_ECMP This component does not support the underlying hardware.
PAPI_ESYS A system or C library call failed inside PAPI, see the errno variable.
PAPI_ENOMEM Insufficient memory to complete the operation.
PAPI_ECMP This component does not support the underlying hardware.
PAPI_ESYS A system or C library call failed inside PAPI, see the errno variable.
PAPI_library_init() initializes the PAPI library. PAPI_is_initialized() check for initialization. It must be called before any low level PAPI functions can be used. If your application is making use of threads PAPI_thread_init must also be called prior to making any calls to the library other than PAPI_library_init() .
Examples:
int retval;
retval = PAPI_library_init(PAPI_VER_CURRENT);
if (retval != PAPI_VER_CURRENT && retval > 0) {
fprintf(stderr,"PAPI library version mismatch!\en");
exit(1); }
if (retval < 0)
handle_error(retval);
retval = PAPI_is_initialized();
if (retval != PAPI_LOW_LEVEL_INITED)
handle_error(retval)
See also
PAPI_thread_init PAPI
Author¶
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| Thu Dec 14 2023 | Version 7.1.0.0 |