NAME¶

TAU_PROFILE_SET_CONTEXT - Informs the measurement system of the context id

SYNOPSIS¶

C/C++:

TAU_PROFILE_SET_CONTEXT(int context);

Fortran:

TAU_PROFILE_SET_CONTEXT(integer context);

DESCRIPTION¶

The TAU_PROFILE_SET_CONTEXT macro sets the context identifier of the executing task for profiling and tracing. Tasks are identified using context, context and thread ids. The profile data files generated will accordingly be named profile.<context>.<context>.<thread>. Note that it is not necessary to call TAU_PROFILE_SET_CONTEXT when using the TAU MPI wrapper library.

EXAMPLE¶

C/C++ :

int main (int argc, char **argv) {


  int ret, i;


  pthread_attr_t  attr;


  pthread_t       tid;


  TAU_PROFILE_TIMER(tautimer,"main()", "int (int, char **)",


                    TAU_DEFAULT);


  TAU_PROFILE_START(tautimer);


  TAU_PROFILE_INIT(argc, argv);


  TAU_PROFILE_SET_NODE(0);


  TAU_PROFILE_SET_CONTEXT(1);


  /* ... */


  TAU_PROFILE_STOP(tautimer);


  return 0;
}


    

Fortran :

     PROGRAM SUM_OF_CUBES


       integer profiler(2) / 0, 0 /


        save profiler


      INTEGER :: H, T, U


        call TAU_PROFILE_INIT()


        call TAU_PROFILE_TIMER(profiler, 'PROGRAM SUM_OF_CUBES')


        call TAU_PROFILE_START(profiler)


        call TAU_PROFILE_SET_NODE(0)


        call TAU_PROFILE_SET_CONTEXT(1)


      ! This program prints all 3-digit numbers that


      ! equal the sum of the cubes of their digits.


      DO H = 1, 9


        DO T = 0, 9


          DO U = 0, 9


          IF (100*H + 10*T + U == H**3 + T**3 + U**3) THEN


             PRINT "(3I1)", H, T, U


          ENDIF


          END DO


        END DO


      END DO


      call TAU_PROFILE_STOP(profiler)


      END PROGRAM SUM_OF_CUBES


    

SEE ALSO¶

TAU_PROFILE_SET_NODE(3)