ge_acc_i(3PI) Sun Interval Performance Library ge_acc_i(3PI)NAMEge_acc_i - General matrix accumulation and scale.
DESCRIPTION
B = ALPHA * A + BETA * B
or
B = ALPHA * A_transposed + BETA * B
The routine GE_ACC_I scales an general interval matrix A (or its transā
pose), scales an general interval matrix B, and accumulates the result
in the interval matrix B. Matrices A (or A_transposed) and B have the
same storage format. This routine returns immediately if M or N is
equal to zero.
SYNOPSIS
SUBROUTINE GE_ACC_I( A, B [, TRANSA] [, ALPHA] [, BETA] )
INTERVAL, INTENT(INOUT) :: B(:,:)
INTERVAL, INTENT(IN) :: A(:,:)
INTERVAL, INTENT(IN), OPTIONAL :: ALPHA, BETA
TYPE(blas_trans_type), INTENT(IN), OPTIONAL :: TRANSA
where
A and B have shape (M,N) if TRANSA = blas_no_trans.
A has shape (N,M) and B has shape (M,N) if TRANSA /= blas_no_trans.
ARGUMENTS
B (input/output)
On entry, B is array of DIMENSION (M,N).
On exit, if TRANSA = blas_no_trans:
B = ALPHA * A + BETA * B
If TRANSA /= blas_no_trans:
B = ALPHA * A_transposed + BETA * B
A (input)
On entry, A is array of DIMENSION (M,N)
if TRANSA = blas_no_trans.
A is array of DIMENSION (N,M)
if TRANSA /= blas_no_trans,
Unchanged on exit.
ALPHA (input)
On entry, ALPHA specifies the scalar ALPHA.
Default value is ALPHA = [1,1].
Unchanged on exit.
BETA (input)
On entry, BETA specifies the scalar BETA.
Default value is BETA = [0,0].
Unchanged on exit.
TRANSA (input)
Scalar element.
Specifies the matrix A transpose.
Possible values:
TRANSA = blas_no_trans (default)
TRANSA = blas_trans
Unchanged on exit.
ERRORS
blas_error_alloc
A or B is unallocated array
blas_error_shape
A or B has unappropriate shape
6 Mar 2009 ge_acc_i(3PI)