matextensionmodule::cspremult Interface Reference

Performs a matrix-matrix multiplication. More...

Private Member Functions
subroutine	cspremultmat (aMat, bMat, cMat, iflag, ierr)
	Performs a matrix-matrix multiplication. More...
subroutine	cspremultvec (aMat, bVec, cVec, iflag, ierr)
	Performs a matrix-vector multiplication. More...
subroutine	cspremultmatrix (aMat, bMat, ierr)
	Performs a matrix-matrix multiplication. More...
subroutine	cspremultvector (aMat, bVec, ierr)
	Performs a matrix-vector multiplication. More...

Detailed Description

Performs a matrix-matrix multiplication.

Member Function/Subroutine Documentation

cspremultmat()

subroutine matextensionmodule::cspremult::cspremultmat ( type(sysmatrixtype), intent(inout)  aMat, real(dp), dimension(:,:), intent(in)  bMat, real(dp), dimension(:,:), intent(out), target  cMat, integer, intent(in)  iflag, integer, intent(out)  ierr  )

private

Performs a matrix-matrix multiplication.

Parameters

[in]	aMat	System matrix A
[in]	bMat	Rectangular dense matrix B
[out]	cMat	Resulting matrix C
[in]	iflag	Operation flag (see below)
[out]	ierr	Error flag

The matrix multiplication C = A B is performed, where A is on compact (sparse) form whereas C and B are dense rectangular matrices. The value on iflag determines the sign on the resulting matrix, as follows:

• iflag = 0 : C = A B (where B and C may be the same array)
• iflag = +1 : C = A B (B and C cannot be the same array)
• iflag = -1 : C = -A B
• iflag = +2 : C = C + A B
• iflag = -2 : C = C - A B

Author

Bjorn Haugen

Date

Oct 1998

Author

Knut Morten Okstad

Date

Jan 2003

cspremultmatrix()

subroutine matextensionmodule::cspremult::cspremultmatrix ( type(sysmatrixtype), intent(inout)  aMat, real(dp), dimension(:,:), intent(inout), target  bMat, integer, intent(out)  ierr  )

private

Performs a matrix-matrix multiplication.

Parameters

[in]	aMat	System matrix A
	bMat	Rectangular dense matrix B
[out]	ierr	Error flag

The matrix multiplication B = A B is performed, where A is on compact (sparse) form and B is a dense rectangular matrix.

Author

Knut Morten Okstad

Date

Jan 2018

cspremultvec()

subroutine matextensionmodule::cspremult::cspremultvec ( type(sysmatrixtype), intent(inout)  aMat, real(dp), dimension(:), intent(in)  bVec, real(dp), dimension(:), intent(out), target  cVec, integer, intent(in)  iflag, integer, intent(out)  ierr  )

private

Performs a matrix-vector multiplication.

Parameters

[in]	aMat	System matrix A
[in]	bVec	System vector b
[out]	cVec	Resulting matrix c
[in]	iflag	Operation flag (see below)
[out]	ierr	Error flag

The matrix-vector multiplication c = A b is performed, where A is on compact (sparse) form whereas c and b are vectors. The value on iflag determines the sign on the resulting vector, as follows:

• iflag = +1 : c = A b
• iflag = -1 : c = -A b
• iflag = +2 : c = c + A b
• iflag = -2 : c = c - A b

Author

Bjorn Haugen

Date

Oct 1998

Author

Knut Morten Okstad

Date

Jan 2003

cspremultvector()

subroutine matextensionmodule::cspremult::cspremultvector ( type(sysmatrixtype), intent(inout)  aMat, real(dp), dimension(:), intent(inout), target  bVec, integer, intent(out)  ierr  )

private

Performs a matrix-vector multiplication.

Parameters

[in]	aMat	System matrix A
	bVec	System vector b
[out]	ierr	Error flag

The matrix-vector multiplication b = A b is performed, where A is on compact (sparse) form and b is a vector.

Author

Knut Morten Okstad

Date

Jan 2018

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The documentation for this interface was generated from the following file:

• src/vpmCommon/vpmLinAlg/matExtensionModule.f90