The command line is below.
/usr/share/fsl/5.0/bin/melodic -v -i .filelist --bgimage=/usr/share/fsl/data/standard/MNI152_T1_2mm_brain.nii.gz --bgthreshold=5.000000 -m /usr/share/fsl/data/standard/MNI152_T1_2mm_brain_mask.nii.gz --migp --nobet -o melodic.gica --Ostats --report --sep_vn --tr=0.754000
vs
/usr/share/fsl/5.0/bin/melodic -v -i .filelist --bgimage=/usr/share/fsl/data/standard/MNI152_T1_2mm_brain.nii.gz --bgthreshold=5.000000 -m /usr/share/fsl/data/standard/MNI152_T1_2mm_brain_mask.nii.gz --nobet -o melodic.gica --Ostats --report --tr=0.754000 -a concat
I modified the std_pca function to use BLAS library. Unfortunately there is overhead of copying data from the different formats but no need to pipe data in and out. Note the modification was not used to perform the tests above. That is straight fsl.
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