[MINC-users] Determining memory usage for minctracc calls

[Matthijs van Eede]

Hi Gabriel,

This is (basically) what we've done until now. We want to get away from this approach to make our code run more easily on varying types of input files (specifically at SciNet). Looks like this is one of those trade-offs between spending time going through the code and updating the lookup table when new data comes along...

Cheers,
Matthijs

----- Original Message -----
From: "Gabriel Devenyi" <gdevenyi at gmail.com>
To: "MINC users mailing list" <minc-users at bic.mni.mcgill.ca>
Sent: Monday, June 8, 2015 3:51:51 PM
Subject: Re: [MINC-users] Determining memory usage for minctracc calls

I can't offer an answer, but I wonder whether Valgrind (http://valgrind.org/)
could be used to analyze the memory usage as a function of the input
parameters to create some kind of lookup table?

-- 
Gabriel A. Devenyi B.Eng. Ph.D.
Research Computing Associate
Computational Brain Anatomy Laboratory
Cerebral Imaging Center
Douglas Mental Health University Institute
McGill University
t: 514.761.6131x4781
e: gdevenyi at gmail.com

On Mon, Jun 8, 2015 at 3:45 PM, Matthijs van Eede <matthijs at mouseimaging.ca>
wrote:

> Hi all,
>
> We are trying to determine/estimate how much memory a minctracc call will
> use depending on the file resolution, number of voxels and the step size
> used in the minctracc call. So far we have not been able to fit the memory
> data we've gathered in a way that can predict memory usage for a wide range
> of input resolutions.
>
> One of the things we realized is that minctracc uses (at least one) memory
> saving strategy: if a mask is provided for the registration, the bounding
> box for the region of interest is determined, and only that volume is used
> for the actual registration. Does any know of any other memory saving
> strategies that minctracc uses? Or is there anyone who might have an
> intuition on how the memory usage should vary on file size and step size /
> resolution?
>
> Thanks in advance,
> Matthijs
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