matrix-product {GPUmatrix}

Matrix Products

Description

Mimic of the 'base' functions %*%, crossprod, tcrossprod to operate on gpu.matrix-class objects.

Usage

## S4 method for signature 'gpu.matrix.tensorflow,ANY'
x %*% y
## S4 method for signature 'gpu.matrix.torch,ANY'
x %*% y

## S4 method for signature 'gpu.matrix.tensorflow,ANY'
crossprod(x, y,...)
## S4 method for signature 'gpu.matrix.tensorflow,missing'
crossprod(x, y = NULL,...)

## S4 method for signature 'gpu.matrix.tensorflow,ANY'
tcrossprod(x, y,...)
## S4 method for signature 'gpu.matrix.tensorflow,missing'
tcrossprod(x, y = NULL,...)


## S4 method for signature 'gpu.matrix.torch,ANY'
crossprod(x, y,...)
## S4 method for signature 'gpu.matrix.torch,missing'
crossprod(x, y = NULL,...)

## S4 method for signature 'gpu.matrix.torch,ANY'
tcrossprod(x, y,...)
## S4 method for signature 'gpu.matrix.torch,missing'
tcrossprod(x, y = NULL,...)

Arguments

x

a gpu.matrix.

y

a gpu.matrix, 'matrix' or 'Matrix' object. For the functions tcrossprod and crossprod is NULL (by default), that is equivalent to x=y.

...

potentially more arguments passed to and from methods.

Details

Internally, these functions call the appropriate tensorflow or torch function to perform the matrix product (depending on the type of input gpu.matrix-class).

If the input gpu.matrix-class object(s) are stored on the GPU, then the operations will be performed on the GPU. See gpu.matrix.

Value

A gpu.matrix-class object with the result of the matrix product.

Methods

%*%

signature(x = "gpu.matrix.tensorflow", y = "ANY"): Matrix multiplication

crossprod

signature(x = "gpu.matrix.tensorflow", y = "ANY"): Matrix multiplication

crossprod

signature(x = "gpu.matrix.tensorflow", y = "missing"): Matrix multiplication

tcrossprod

signature(x = "gpu.matrix.tensorflow", y = "ANY"): Matrix multiplication

tcrossprod

signature(x = "gpu.matrix.tensorflow", y = "missing"): Matrix multiplication

%*%

signature(x = "gpu.matrix.torch", y = "ANY"): Matrix multiplication

crossprod

signature(x = "gpu.matrix.torch", y = "ANY"): Matrix multiplication

crossprod

signature(x = "gpu.matrix.torch", y = "missing"): Matrix multiplication

tcrossprod

signature(x = "gpu.matrix.torch", y = "ANY"): Matrix multiplication

tcrossprod

signature(x = "gpu.matrix.torch", y = "missing"): Matrix multiplication

See Also

tcrossprod in R's base, and crossprod and %*%. Matrix package %&% for boolean matrix product methods. Also see torch_matmul

Examples

## Not run: 
a <- gpu.matrix(rnorm(12),nrow=4,ncol=3)
b <- t(a)
b
crossprod(a,a)

b <- a
b
tcrossprod(a)



## End(Not run)