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C******************************************************************************
C FILE: omp_hello.f
C DESCRIPTION:
C OpenMP Example - Hello World - Fortran Version
C In this simple example, the master thread forks a parallel region.
C All threads in the team obtain their unique thread number and print it.
C The master thread only prints the total number of threads. Two OpenMP
C library routines are used to obtain the number of threads and each
C thread's number.
C AUTHOR: Blaise Barney 5/99
C LAST REVISED:
C******************************************************************************
PROGRAM HELLO
INTEGER NTHREADS, TID, OMP_GET_NUM_THREADS,
+ OMP_GET_THREAD_NUM
C Fork a team of threads giving them their own copies of variables
!$OMP PARALLEL PRIVATE(NTHREADS, TID)
C Obtain thread number
TID = OMP_GET_THREAD_NUM()
PRINT *, 'Hello World from thread = ', TID
C Only master thread does this
IF (TID .EQ. 0) THEN
NTHREADS = OMP_GET_NUM_THREADS()
PRINT *, 'Number of threads = ', NTHREADS
END IF
C All threads join master thread and disband
!$OMP END PARALLEL
END
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