quaternaryBlockSize

Resolve a loop block size for multi-dimensional array tiled loops.

Installation

npm install @stdlib/ndarray-base-quaternary-tiling-block-size

Usage

var quaternaryBlockSize = require( '@stdlib/ndarray-base-quaternary-tiling-block-size' );

quaternaryBlockSize( dtypeX, dtypeY, dtypeZ, dtypeW, dtypeU )

Resolves a loop block size according to provided ndarray dtypes for multi-dimensional array tiled loops applying a quaternary function.

var bsize = quaternaryBlockSize( 'float64', 'float64', 'float64', 'float64', 'float64' );
// returns <number>

The function supports the following arguments:

• dtypeX: first input array data type.
• dtypeY: second input array data type.
• dtypeZ: third input array data type.
• dtypeW: fourth input array data type.
• dtypeU: output array data type.

Notes

• The returned loop tiling block size is in units of elements.

Examples

var dtypes = require( '@stdlib/ndarray-dtypes' );
var cartesianPower = require( '@stdlib/array-base-cartesian-power' );
var promoteDataTypes = require( '@stdlib/ndarray-base-promote-dtypes' );
var quaternaryBlockSize = require( '@stdlib/ndarray-base-quaternary-tiling-block-size' );

// Generate a list of input ndarray dtype quadruplets:
var dt = cartesianPower( dtypes(), 4 );

// Resolve the block size for each dtype quadruplet and its promoted dtype...
var t;
var b;
var i;
console.log( 'block_size, xdtype, ydtype, zdtype, wdtype, udtype' );
for ( i = 0; i < dt.length; i++ ) {
    t = promoteDataTypes( dt[ i ] );
    dt[ i ].push( ( t === null ) ? 'generic' : t );
    b = quaternaryBlockSize.apply( null, dt[ i ] );
    console.log( '%d, %s, %s, %s, %s, %s', b, dt[i][0], dt[i][1], dt[i][2], dt[i][3], dt[i][4] );
}

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

License

See LICENSE.

Copyright

Copyright © 2016-2026. The Stdlib Authors.