Hi Christian, Dear FSL list:
it would be strange if it were a memory problem, because I have the
problems on three different computers, one running debian, one running
Ubuntu 7, and the other running Ubuntu 8 64bit. I have tested RAM with
memtest-86 on one computer, but will also run it on the others just to
rule out the possibility that the errors result from bad memory.
1.) But why should there be a difference between case 2 and case 6
(same amount of data)?
2.) When you say 4GB RAM should be fine, would it work on a set of
data from 12 subjects, with 2 session (880 epis) each?
3.) In the end I want to have task related ICs and examine if they
differ between two conditions (within-subject). Therefore, tensor ICA
on all data is not necessarily what I need. How could I do that based
on ICAs performed on single sessions? Any ideas?
Cheers, Sascha
On Mon, Jul 28, 2008 at 11:11 PM, Christian F. Beckmann
<[log in to unmask]> wrote:
> Hi,
>
> is it possible that your system has some dodgy RAM? if run 6 2orks but run 2
> doesn't than this points to some memory related issue - but with 4GB all
> should be fine. Can you run some diagnostics?
> If melodic crashes then yes, the report directory will be incomplete.
> cheers
> christian
>
>
> On 25 Jul 2008, at 12:55, Sascha Purmann wrote:
>
>> [...]
>> What I did so far for testing (all on the fsl course data;
>> /fsl_course_data/melodic/tensor):
>>
>> 1. run tensor ICA with functional runs of all four subjects -> failed
>> 2. run tensor ICA with functional runs of two subjects -> failed
>> 3. split functional runs of subject 1 into two parts and run tensor ICA an
>> these -> worked
>> 4. split functional runs of subject 2 into two parts and run tensor ICA an
>> these -> worked
>>
>> 5. run tensor ICA on part 1 of subject 1 and part 1 of subject 2 -> worked
>> 6. run tensor ICA on all 4 parts
>> (part1/subj1,part2/subj1,part1/subj2,part2/subj2) -> worked
>>
>> When tensor ICA failed, then with the error given in my previous message,
>> which also means it does not give a full html-report (report/00index.html
>> does not show any components, TICA modes or PCA estimates).
>>
>> Especially 6 and 2 are interesting, because it's the same data but in 6
>> split into pieces.
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