sp_add_i(3PI) Sun Interval Performance Library sp_add_i(3PI)NAMEsp_add_i - Symmetric packed matrix add and scale.
DESCRIPTION
C = ALPHA * A + BETA * B
The routine SP_ADD_I scales symmetric packed interval matrices A and B
and stores the sum in the interval matrix C. This routine returns imme‐
diately if N is equal to zero.
SYNOPSIS
SUBROUTINE SP_ADD_I( A, B, C [, UPLO] [, ALPHA] [, BETA] )
INTERVAL, INTENT(IN) :: A(:), B(:)
INTERVAL, INTENT(OUT) :: C(:)
INTERVAL, INTENT(IN), OPTIONAL :: ALPHA, BETA
TYPE(blas_uplo_type), INTENT(IN), OPTIONAL :: UPLO
where
assuming A, B and C all symmetric packed matrices with the
same shape (N*(N+1)/2).
ARGUMENTS
A (input)
On entry, A is array of DIMENSION (N*(N+1)/2).
Unchanged on exit.
B (input)
On entry, B is array of DIMENSION (N*(N+1)/2).
Unchanged on exit.
C (output)
On entry, C is array of DIMENSION (N*(N+1)/2).
On exit, C = ALPHA * A + BETA * B
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.
UPLO(input)
Scalar element.
Specifies if the matrix operand is an upper or
lower tringular part of the symmetric matrix.
Possible values:
UPLO = blas_upper (default)
UPLO = blas_lower
Unchanged on exit.
ERRORS
blas_error_alloc
A, B or C is unallocated array
blas_error_shape
shape(A) /= shape(B) /= shape(C)
6 Mar 2009 sp_add_i(3PI)
