Functionality Table#

The following tables give an overview whether a rocALUTION routine is implemented on host backend, accelerator backend, or both.

LocalMatrix and LocalVector classes#

All matrix operations (except SpMV) require a CSR matrix.

Note

If the input matrix is not a CSR matrix, an internal conversion will be performed to CSR format, followed by a back conversion to the previous format after the operation. In this case, a warning message on verbosity level 2 will be printed.

LocalMatrix function

Comment

Host

HIP

GetFormat

Obtain the matrix format

Yes

Yes

Check

Check the matrix for structure and value validity

Yes

No

AllocateCSR

Allocate CSR matrix

Yes

Yes

AllocateBCSR

Allocate BCSR matrix

Yes

Yes

AllocateMCSR

Allocate MCSR matrix

Yes

Yes

AllocateCOO

Allocate COO matrix

Yes

Yes

AllocateDIA

Allocate DIA matrix

Yes

Yes

AllocateELL

Allocate ELL matrix

Yes

Yes

AllocateHYB

Allocate HYB matrix

Yes

Yes

AllocateDENSE

Allocate DENSE matrix

Yes

Yes

SetDataPtrCSR

Initialize matrix with externally allocated CSR data

Yes

Yes

SetDataPtrMCSR

Initialize matrix with externally allocated MCSR data

Yes

Yes

SetDataPtrCOO

Initialize matrix with externally allocated COO data

Yes

Yes

SetDataPtrDIA

Initialize matrix with externally allocated DIA data

Yes

Yes

SetDataPtrELL

Initialize matrix with externally allocated ELL data

Yes

Yes

SetDataPtrDENSE

Initialize matrix with externally allocated DENSE data

Yes

Yes

LeaveDataPtrCSR

Direct Memory access

Yes

Yes

LeaveDataPtrMCSR

Direct Memory access

Yes

Yes

LeaveDataPtrCOO

Direct Memory access

Yes

Yes

LeaveDataPtrDIA

Direct Memory access

Yes

Yes

LeaveDataPtrELL

Direct Memory access

Yes

Yes

LeaveDataPtrDENSE

Direct Memory access

Yes

Yes

Zeros

Set all matrix entries to zero

Yes

Yes

Scale

Scale all matrix non-zeros

Yes

Yes

ScaleDiagonal

Scale matrix diagonal

Yes

Yes

ScaleOffDiagonal

Scale matrix off-diagonal entries

Yes

Yes

AddScalar

Add scalar to all matrix non-zeros

Yes

Yes

AddScalarDiagonal

Add scalar to matrix diagonal

Yes

Yes

AddScalarOffDiagonal

Add scalar to matrix off-diagonal entries

Yes

Yes

ExtractSubMatrix

Extract sub-matrix

Yes

Yes

ExtractSubMatrices

Extract array of non-overlapping sub-matrices

Yes

Yes

ExtractDiagonal

Extract matrix diagonal

Yes

Yes

ExtractInverseDiagonal

Extract inverse matrix diagonal

Yes

Yes

ExtractL

Extract lower triangular matrix

Yes

Yes

ExtractU

Extract upper triangular matrix

Yes

Yes

Permute

(Forward) permute the matrix

Yes

Yes

PermuteBackward

(Backward) permute the matrix

Yes

Yes

CMK

Create CMK permutation vector

Yes

No

RCMK

Create reverse CMK permutation vector

Yes

No

ConnectivityOrder

Create connectivity (increasing nnz per row) permutation vector

Yes

No

MultiColoring

Create multi-coloring decomposition of the matrix

Yes

No

MaximalIndependentSet

Create maximal independent set decomposition of the matrix

Yes

No

ZeroBlockPermutation

Create permutation where zero diagonal entries are mapped to the last block

Yes

No

ILU0Factorize

Create ILU(0) factorization

Yes

No

LUFactorize

Create LU factorization

Yes

No

ILUTFactorize

Create ILU(t,m) factorization

Yes

No

ILUpFactorize

Create ILU(p) factorization

Yes

No

ICFactorize

Create IC factorization

Yes

No

QRDecompose

Create QR decomposition

Yes

No

ReadFileMTX

Read matrix from matrix market file

Yes

No

WriteFileMTX

Write matrix to matrix market file

Yes

No

ReadFileCSR

Read matrix from binary file

Yes

No

WriteFileCSR

Write matrix to binary file

Yes

No

CopyFrom

Copy matrix (values and structure) from another LocalMatrix

Yes

Yes

CopyFromAsync

Copy matrix asynchronously

Yes

Yes

CloneFrom

Clone an entire matrix (values, structure and backend) from another LocalMatrix

Yes

Yes

UpdateValuesCSR

Update CSR matrix values (structure remains identical)

Yes

Yes

CopyFromCSR

Copy (import) CSR matrix

Yes

Yes

CopyToCSR

Copy (export) CSR matrix

Yes

Yes

CopyFromCOO

Copy (import) COO matrix

Yes

Yes

CopyToCOO

Copy (export) COO matrix

Yes

Yes

CopyFromHostCSR

Allocate and copy (import) a CSR matrix from host

Yes

No

ConvertToCSR

Convert a matrix to CSR format

Yes

No

ConvertToMCSR

Convert a matrix to MCSR format

Yes

No

ConvertToBCSR

Convert a matrix to BCSR format

Yes

No

ConvertToCOO

Convert a matrix to COO format

Yes

Yes

ConvertToELL

Convert a matrix to ELL format

Yes

Yes

ConvertToDIA

Convert a matrix to DIA format

Yes

Yes

ConvertToHYB

Convert a matrix to HYB format

Yes

Yes

ConvertToDENSE

Convert a matrix to DENSE format

Yes

No

ConvertTo

Convert a matrix

Yes

SymbolicPower

Perform symbolic power computation (structure only)

Yes

No

MatrixAdd

Matrix addition

Yes

No

MatrixMult

Multiply two matrices

Yes

No

DiagonalMatrixMult

Multiply matrix with diagonal matrix (stored in LocalVector)

Yes

Yes

DiagonalMatrixMultL

Multiply matrix with diagonal matrix (stored in LocalVector) from left

Yes

Yes

DiagonalMatrixMultR

Multiply matrix with diagonal matrix (stored in LocalVector) from right

Yes

Yes

Gershgorin

Compute the spectrum approximation with Gershgorin circles theorem

Yes

No

Compess

Delete all entries where abs(a_ij) <= drop_off

Yes

Yes

Transpose

Transpose the matrix

Yes

No

Sort

Sort the matrix indices

Yes

No

Key

Compute a unique matrix key

Yes

No

ReplaceColumnVector

Replace a column vector of a matrix

Yes

No

ReplaceRowVector

Replace a row vector of a matrix

Yes

No

ExtractColumnVector

Extract a column vector of a matrix

Yes

No

ExtractRowVector

Extract a row vector of a matrix

Yes

No

LocalVector function

Comment

Host

HIP

GetSize

Obtain vector size

Yes

Yes

Check

Check vector for valid entries

Yes

No

Allocate

Allocate vector

Yes

Yes

Sync

Synchronize

Yes

Yes

SetDataPtr

Initialize vector with external data

Yes

Yes

LeaveDataPtr

Direct Memory Access

Yes

Yes

Zeros

Set vector entries to zero

Yes

Yes

Ones

Set vector entries to one

Yes

Yes

SetValues

Set vector entries to scalar

Yes

Yes

SetRandomUniform

Initialize vector with uniformly distributed random numbers

Yes

No

SetRandomNormal

Initialize vector with normally distributed random numbers

Yes

No

ReadFileASCII

Read vector for ASCII file

Yes

No

WriteFileASCII

Write vector to ASCII file

Yes

No

ReadFileBinary

Read vector from binary file

Yes

No

WriteFileBinary

Write vector to binary file

Yes

No

CopyFrom

Copy vector (values) from another LocalVector

Yes

Yes

CopyFromAsync

Copy vector asynchronously

Yes

Yes

CopyFromFloat

Copy vector from another LocalVector<float>

Yes

Yes

CopyFromDouble

Copy vector from another LocalVector<double>

Yes

Yes

CopyFromPermute

Copy vector under specified (forward) permutation

Yes

Yes

CopyFromPermuteBackward

Copy vector under specified (backward) permutation

Yes

Yes

CloneFrom

Clone vector (values and backend descriptor) from another LocalVector

Yes

Yes

CopyFromData

Copy (import) vector from array

Yes

Yes

CopyToData

Copy (export) vector to array

Yes

Yes

Permute

(Foward) permute vector in-place

Yes

Yes

PermuteBackward

(Backward) permute vector in-place

Yes

Yes

AddScale

y = a * x + y

Yes

Yes

ScaleAdd

y = x + a * y

Yes

Yes

ScaleAddScale

y = b * x + a * y

Yes

Yes

ScaleAdd2

z = a * x + b * y + c * z

Yes

Yes

Scale

x = a * x

Yes

Yes

ExclusiveScan

Compute exclusive sum

Yes

No

Dot

Compute dot product

Yes

Yes

DotNonConj

Compute non-conjugated dot product

Yes

Yes

Norm

Compute L2 norm

Yes

Yes

Reduce

Obtain the sum of all vector entries

Yes

Yes

Asum

Obtain the absolute sum of all vector entries

Yes

Yes

Amax

Obtain the absolute maximum entry of the vector

Yes

Yes

PointWiseMult

Perform point wise multiplication of two vectors

Yes

Yes

Power

Compute vector power

Yes

Yes

Solver and Preconditioner classes#

Note

The building phase of the iterative solver also depends on the selected preconditioner.

Solver

Functionality

Host

HIP

CG

Building

Yes

Yes

CG

Solving

Yes

Yes

FCG

Building

Yes

Yes

FCG

Solving

Yes

Yes

CR

Building

Yes

Yes

CR

Solving

Yes

Yes

BiCGStab

Building

Yes

Yes

BiCGStab

Solving

Yes

Yes

BiCGStab(l)

Building

Yes

Yes

BiCGStab(l)

Solving

Yes

Yes

QMRCGStab

Building

Yes

Yes

QMRCGStab

Solving

Yes

Yes

GMRES

Building

Yes

Yes

GMRES

Solving

Yes

Yes

FGMRES

Building

Yes

Yes

FGMRES

Solving

Yes

Yes

Chebyshev

Building

Yes

Yes

Chebyshev

Solving

Yes

Yes

Mixed-Precision

Building

Yes

Yes

Mixed-Precision

Solving

Yes

Yes

Fixed-Point Iteration

Building

Yes

Yes

Fixed-Point Iteration

Solving

Yes

Yes

AMG (Plain Aggregation)

Building

Yes

No

AMG (Plain Aggregation)

Solving

Yes

Yes

AMG (Smoothed Aggregation)

Building

Yes

No

AMG (Smoothed Aggregation)

Solving

Yes

Yes

AMG (Ruge Stueben)

Building

Yes

No

AMG (Ruge Stueben)

Solving

Yes

Yes

AMG (Pairwise Aggregation)

Building

Yes

No

AMG (Pairwise Aggregation)

Solving

Yes

Yes

LU

Building

Yes

No

LU

Solving

Yes

No

QR

Building

Yes

No

QR

Solving

Yes

No

Inversion

Building

Yes

No

Inversion

Solving

Yes

Yes

Preconditioner

Functionality

Host

HIP

Jacobi

Building

Yes

Yes

Jacobi

Solving

Yes

Yes

BlockJacobi

Building

Yes

Yes

BlockJacobi

Solving

Yes

Yes

MultiColoredILU(0,1)

Building

Yes

Yes

MultiColoredILU(0,1)

Solving

Yes

Yes

MultiColoredILU(>0, >1)

Building

Yes

No

MultiColoredILU(>0, >1)

Solving

Yes

Yes

MultiElimination(I)LU

Building

Yes

No

MultiElimination(I)LU

Solving

Yes

Yes

ILU(0)

Building

Yes

Yes

ILU(0)

Solving

Yes

Yes

ILU(>0)

Building

Yes

No

ILU(>0)

Solving

Yes

No

ILUT

Building

Yes

No

ILUT

Solving

Yes

No

IC(0)

Building

Yes

No

IC(0)

Solving

Yes

No

FSAI

Building

Yes

No

FSAI

Solving

Yes

Yes

SPAI

Building

Yes

No

SPAI

Solving

Yes

Yes

Chebyshev

Building

Yes

No

Chebyshev

Solving

Yes

Yes

MultiColored(S)GS

Building

Yes

No

MultiColored(S)GS

Solving

Yes

Yes

(S)GS

Building

Yes

No

(S)GS

Solving

Yes

No

(R)AS

Building

Yes

Yes

(R)AS

Solving

Yes

Yes

BlockPreconditioner

Building

Yes

Yes

BlockPreconditioner

Solving

Yes

Yes

SaddlePoint

Building

Yes

No

SaddlePoint

Solving

Yes

Yes