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November 15, 2021 10:09AM
Robin,

> Are you planning on updating the functionalities in the future to support big-datasets? Maybe make
> them create temporary files on the hard-drive instead of keeping it all in the RAM?

It seems that the memory crash happened when 3dMVM was trying to save the results to the output file. One easy solution is to break the input files into a few chunks. For example, suppose there are 90 slices along the Z-axis, use 3dZcutup to create 3 separate files: one for slices 1-30, one for 31-60, and one for 61-90. Do this in a loop for all the input files. Then run 3dMVM for each of the three chunks separately. In the end glue them back with 3dZcat.

> In this standard approach, would it also be OK to use the 3dMVM residuals instead of the pre-proc residuals?

FWIW, there is no such an approach that could be considered "standard". You're trying to draw a rigorous line in the sand, but there are so many factors up for debate.

Gang
Subject Author Posted

3dMVM -residuals error

Robin November 06, 2021 03:05PM

Re: 3dMVM -residuals error

Gang November 08, 2021 03:57PM

Re: 3dMVM -residuals error

Robin November 12, 2021 05:12AM

Re: 3dMVM -residuals error

Gang November 15, 2021 10:09AM

Re: 3dMVM -residuals error

Robin November 16, 2021 05:38AM

Re: 3dMVM -residuals error

Gang November 16, 2021 08:14AM

Re: 3dMVM -residuals error

Robin May 04, 2022 07:39AM

Re: 3dMVM -residuals error

rick reynolds May 04, 2022 10:44AM

Re: 3dMVM -residuals error

Robin May 09, 2022 05:03AM

Re: 3dMVM -residuals error

Gang May 10, 2022 07:46AM

Re: 3dMVM -residuals error

Robin May 17, 2022 09:11AM

Re: 3dMVM -residuals error

Gang May 21, 2022 04:28PM

Re: 3dMVM -residuals error

Robin May 24, 2022 07:56AM

Re: 3dMVM -residuals error

Gang May 25, 2022 11:15AM



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