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Top Forums UNIX for Advanced & Expert Users File comaprsons for the Huge data files ( around 60G) - Need optimized and teh best way to do this Post 303025148 by kartikirans on Thursday 25th of October 2018 09:54:28 AM
Old 10-25-2018
File comaprsons for the Huge data files ( around 60G) - Need optimized and teh best way to do this

I have 2 large file (.dat) around 70 g, 12 columns but the data not sorted in both the files.. need your inputs in giving the best optimized method/command to achieve this and redirect the not macthing lines to the thrid file ( diff.dat)


File 1 - 15 columns
File 2 - 15 columns

Data is not in sorted order.
 

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MPSImageLaplacian(3)					 MetalPerformanceShaders.framework				      MPSImageLaplacian(3)

NAME
MPSImageLaplacian SYNOPSIS
#import <MPSImageConvolution.h> Inherits MPSUnaryImageKernel. Properties float bias Additional Inherited Members Detailed Description The MPSImageLaplacian is an optimized variant of the MPSImageConvolution filter provided primarily for ease of use. This filter uses an optimized convolution filter with a 3 x 3 kernel with the following weights: [ 0 1 0 1 -4 1 0 1 0 ] The optimized convolution filter used by MPSImageLaplacian can also be used by creating a MPSImageConvolution object with kernelWidth = 3, kernelHeight = 3 and weights as specified above. Property Documentation - bias [read], [write], [nonatomic], [assign] The bias is a value to be added to convolved pixel before it is converted back to the storage format. It can be used to convert negative values into a representable range for a unsigned MTLPixelFormat. For example, many edge detection filters produce results in the range [-k,k]. By scaling the filter weights by 0.5/k and adding 0.5, the results will be in range [0,1] suitable for use with unorm formats. It can be used in combination with renormalization of the filter weights to do video ranging as part of the convolution effect. It can also just be used to increase the brightness of the image. Default value is 0.0f. Author Generated automatically by Doxygen for MetalPerformanceShaders.framework from the source code. Version MetalPerformanceShaders-100 Thu Feb 8 2018 MPSImageLaplacian(3)
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