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-   -   Saving disk space? (https://www.mersenneforum.org/showthread.php?t=20605)

Xyzzy 2015-10-31 17:37

Saving disk space?
 
If a job has progressed into the linear algebra phase, is it okay to move the msieve.dat.gz file somewhere else?

(At the moment our SSD is low on free space. We are hoping that Santa brings us [URL="http://www.newegg.com/Product/Product.aspx?Item=N82E16820167300"]one of these[/URL]!)

frmky 2015-10-31 18:48

[QUOTE=Xyzzy;414424]If a job has progressed into the linear algebra phase, is it okay to move the msieve.dat.gz file somewhere else?
[/QUOTE]
You don't need it during the LA, but you will need it again to do the square roots.

chris2be8 2015-11-01 17:26

You could move it somewhere else, then add a symlink where it was pointing to it's new location. Then msieve should pick it up from it's new location when it needs it. That would probably slow down the square root a bit though.

But if I was doing it I'd prefer to leave well alone until the job is finished unless I *really* needed to free space on the SSD.

Chris

Xyzzy 2015-11-01 22:48

We moved some files to another computer so we are okay, for now.

:mike:

Xyzzy 2015-11-14 13:59

We are currently running a large job from our new 256GB USB memory stick. (And we just finished a smaller job from the same stick.)

One would think that this would create a serious disk I/O bottleneck, but it runs pretty well.

Obviously, it isn't ideal, but it will work until (hopefully!) Santa arrives with a larger SSD for us.

:mike:


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