Errors concerning OpenMEEG when computing head model in EEG data

KKKate · January 30, 2018, 3:49pm

Dear all,

When I tried to compute head model with OpenMEEG, this error appeared:
I tried to use the BEM surface:1922,2432,this error still existed.

error is as followings:
OpenMEEG call:om_minverser
’'C:\Users\Administrator.brainstorm\tmp\openmeeg_hm.mat"
“C:\Users\Administrator.brainstorm\tmp\openmeeg_hminv.mat”

OpenMEEG error #1073741819:
l…om_minverser
l C:\Users\Administrator.brainstorm\tmp\openmeeg_hm.mat
l C:\Users\Administrator.brainstorm\tmp\openmeeg_hminv.mat
l…

Many OpenMEEG crashes are due to a lack of memory.
Reduce the number of vertices on each BEM layer and try again.

Francois · January 30, 2018, 4:30pm

Hello,

First, make sure you are working with a recent version of Brainstorm (menu Update > Update Brainstorm).
If this doesn’t solve the issue, please tell us which Matlab version and OS you are using.

@Alexandre @mclerc @Papadopoulos_Teo: “error #1073741819” ?

Francois

KKKate · January 31, 2018, 3:57am

Hello Francois,
Thanks for your reply!I updated the brainstorm and OpenMEEG(download OpenMEEG-2.2.0-win64-x86_64-cl-OpenMP-shared.tar and install it from the menu-OpenMEEG-install),then tried to compute head model, the same error still appeared.
I used Matlab R2013a,windows server 2012R2.

Kate

Francois · January 31, 2018, 12:08pm

Thanks.
Let’s wait for an answer from the openmeeg team.

KKKate · January 31, 2018, 12:22pm

Hope the openmeeg team solve the problem as soon as possible~

KKKate · February 1, 2018, 4:35am

Hi Francois,

I used another computer(window 64bits,matlab R2014a) to compute head model , then OpenMEEG error#3 occurred.
Could you tell me how to solve it? Many thanks!

giovannivecchiato · February 12, 2018, 1:57pm

Hello,

Unfortunately, I have to signal the same problem is occurring on my machine too.
I have updated Brainstorm on the last 9th February, running on Matlab 2013b, on Windows 7.

Also, I encountered a java error (a typical one when facing memory issues) when saving matlab structures.

All these functions worked properly some months ago before the upgrade of Brainstorm.

Is there a way to downgrade the Brainstorm version?

Best regards,
Giovanni

Francois · February 12, 2018, 2:18pm

About the OpenMEEG error: I haven’t had any news from the OpenMEEG developers…
@Alexandre @Papadopoulos_Teo @mclerc?

For your java error, if it’s a “java heap space” error, search the forum for “java heap” and you’ll find the answer easily (eg. Cannot update)
Otherwise, please post the full error message as a new thread.

giovannivecchiato · February 12, 2018, 2:27pm

Hello Francois,

Thank you for your feedback.

Is there any way I can downgrade the version of Brainstorm?

everything worked properly before the upgrade.

All the best,
Giovanni

Francois · February 12, 2018, 3:31pm

No, I cannot recommend starting using old versions because of new issues. We should fix the current issues and move on.

Regarding OpenMEEG: nothing changed recently, a Brainstorm update can most likely not break something at this level. Unless you previous version of Brainstorm was very old?

For you Java issue: please report the full error message in a new thread.

Francois · February 12, 2018, 3:46pm

(If there is no way to make an old script work with a new version of Brainstorm, I can send you a version of any date you’d like, but I really don’t recommend it - there are many silent bugs that might have been fixed as well)

giovannivecchiato · February 12, 2018, 4:25pm

Thank you Francois, I hope it could work this way.
If you could send me a reasonable version date to September 2017. That is the last version that worked properly on my machine.

My email address is: giovanni.vecchiato@in.cnr.it

Best,
Giovanni

Francois · February 12, 2018, 4:44pm

Here is the snapshot from Sept 1st, 2017:
https://www.dropbox.com/s/lp489xadtuf1ckj/brainstorm_170901.zip?dl=0
Please note that I can't tell you what worked or not at this stage, I don't recommend you use it and we won't support it in the future.

giovannivecchiato · February 12, 2018, 4:45pm

Done!
I have posted the errore in a new thread.

giovannivecchiato · February 14, 2018, 11:39am

Hello Francois,

Just to report on a good news: I have installed the old Brainstorm version you posted on Monday and also downgraded the OpenMEEG (release 2.2) and the things are working fine now.

Hope this can help to solve the bug.

Best,
Giovanni

Francois · February 14, 2018, 12:16pm

What about the new version of brainstorm with the old version of OpenMEEG?

giovannivecchiato · February 14, 2018, 12:31pm

It didn’t work.
That’s why I had to downgrade also the OpenMEEG.

joanrue · August 1, 2018, 10:19am

I am experiencing the exact same problem. Are there any news on this? If not, @Francois could you please make available again the old version of Brainstorm? The above link directs to an empty directory.
Thanks!

Alexandre · August 1, 2018, 11:30am

@joanrue we are trying to understand what’s going on but have hard times replicating the problems with @sik

can you share the openmeeg files and provide a screenshot of the error message?
Also please give us as much details as possible on your system (OS, Matlab version etc.)

thanks
Alex

joanrue · August 1, 2018, 12:47pm

Thanks for your quick repply. Here it goes all the info:

SPECS.
OS: Windows 10 Pro
Processor: Intel i7-7700K CPU @ 4.20GHz
RAM: 64 GB
GPU: AMD FirePro W5100 with up-to-date drivers
Matlab version: R2016a, Brainstorm was downloaded 2 days ago and OpenMEEG automatically installed.
Find here the OpenMEEG files.