qutil_double_sum

SYNOPSIS

       #include <qthread/qthread.h>
       #include <qthread/qutil.h>

       double
       qutil_double_sum(qthread_t  *me,  double  *array,  size_t  length,  int
       checkfeb);

       unsigned int
       qutil_uint_sum(qthread_t  *me,  unsigned int *array, size_t length, int
       checkfeb);

       int
       qutil_int_sum(qthread_t *me, int *array, size_t length, int checkfeb);

DESCRIPTION

       These functions take as input an  array  of  length  numbers  and  will
       return  the  sum  of those numbers. This sum is computed in parallel by
       using a lagging-loop structure, using futures to restrict the parallel-
       ism to the available limits.

       If  checkfeb  is non-zero, these functions will wait for the entries in
       the array to be full before adding them. They DO NOT check whether  the
       array entries are properly aligned.

RETURN VALUE

       The sum of the first length entries of array.

SEE ALSO

       qutil_double_mult(3),     qutil_double_max(3),     qutil_double_min(3),
       qutil_uint_mult(3),        qutil_uint_max(3),        qutil_uint_min(3),
       qutil_int_mult(3),   qutil_int_max(3),  qutil_int_min(3),
       qutil_mergesort(3), qutil_qsort(3)



libqthread                         MAY 2007                qutil_double_sum(3)