PAPI 7.1.0.0
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PAPI_set_thr_specific Class Reference

Store a pointer to a thread specific data structure. More...

Detailed Description

Prototype:
#include <papi.h>
int PAPI_set_thr_specific( int tag, void *ptr );
Parameters
tagAn identifier, the value of which is either PAPI_USR1_TLS or PAPI_USR2_TLS. This identifier indicates which of several data structures associated with this thread is to be accessed.
ptrA pointer to the memory containing the data structure.
Return values
PAPI_OK
PAPI_EINVALThe tag argument is out of range.

In C, PAPI_set_thr_specific will save ptr into an array indexed by tag. There are 2 user available locations and tag can be either PAPI_USR1_TLS or PAPI_USR2_TLS. The array mentioned above is managed by PAPI and allocated to each thread which has called PAPI_thread_init. There is no Fortran equivalent function.

Example:
int ret;
RateInfo *state = NULL;
ret = PAPI_thread_init(pthread_self);
if (ret != PAPI_OK) handle_error(ret);
// Do we have the thread specific data setup yet?
if (ret != PAPI_OK || state == NULL) {
state = (RateInfo *) malloc(sizeof(RateInfo));
if (state == NULL) return (PAPI_ESYS);
memset(state, 0, sizeof(RateInfo));
state->EventSet = PAPI_NULL;
ret = PAPI_create_eventset(&state->EventSet);
if (ret != PAPI_OK) return (PAPI_ESYS);
if (ret != PAPI_OK) return (ret);
}
Create a new empty PAPI EventSet.
Retrieve a pointer to a thread specific data structure.
Store a pointer to a thread specific data structure.
Initialize thread support in the PAPI library.
#define PAPI_OK
Definition: f90papi.h:73
#define PAPI_NULL
Definition: f90papi.h:78
#define PAPI_USR1_TLS
Definition: f90papi.h:50
#define PAPI_ESYS
Definition: f90papi.h:136
bool state
Definition: papi_hl.c:155
Definition: papi.c:61
See also
PAPI_register_thread PAPI_thread_init PAPI_thread_id PAPI_get_thr_specific

The documentation for this class was generated from the following file: