ncol-gpuMatrix-method: gpuMatrix class

In gpuMagic: An openCL compiler with the capacity to compile R functions and run the code on GPU

Description

gpuMatrix class

Usage

## S4 method for signature 'gpuMatrix'
ncol(x)

Arguments

x	an gpuMatrix object

Details

gpuMatrix(): Create a matrix in an openCL device

gpuEmptMatrix(): Create an empty matrix without initialization in an openCL device

upload(): The function will automatically be called when an gpuMatrix object is created. It is only needed when you want to update value of the matrix.

download(): Get the data from the device. You should explicitly call it when you want to collect the data from the device.

nrow(),ncol(): return the number of rows or columns present in x

dim(): Retrieve the dimension of an gpuMatrix object

length(): Get the length of an gpuMatrix object.

'getSize()': Get the matrix size in byte

Value

gpuMatrix(): A gpuMatrix object

gpuEmptMatrix(): A gpuMatrix object

Examples

n=10
m=20
A=matrix(runif(n*m),n,m)
#Create a 64 bit floating point GPU matrix
A_dev=gpuMatrix(A,'double')

#Create an empty matrix
B_dev=gpuEmptMatrix(row=n,col=m)

gpuMagic documentation built on Nov. 8, 2020, 5:15 p.m.