Hi Hernandez. 

Thanks for your response. 

I found error log in bedpostx_gpu.o4101.1~4101.4. 

The error message is below. 

...................Allocated GPU 0...................

Log directory is: /home/dkim/Downloads/sub-CC110045.bedpostX/diff_parts/data_part_0000

Number of Voxels to compute in this part: 48717

Number of Directions: 63

SubPart 1 of 4: processing 12800 voxels

ERROR: fit_PVM_single_kernel: invalid device function

Is that means that the CUDA or GPU did not work properly? 

Best regards, 

Kim. 

2018. 8. 23. 오전 8:32, Moises Hernandez <[log in to unmask]> 작성:

Hi Kim, 

I would check that the samples from bedpostx_gpu were generated correctly.

You can check for instance {subject}.bedpostx/merged_f1samples.nii.gz file

Also, check the logs files: {subject}.bedpostx/logs

The may contain an error message.

Moises.

On Wed, 22 Aug 2018 at 19:24, SUBSCRIBE FSL DH Kim <[log in to unmask]> wrote:

Hello FSL experts,

I'm Kim from South Korea.

I need some help.

I recently use bedpostx_gpu in Centos 7, GeForce GTX 1060, CUDA 7.5 and FSL ver 5.0.11.

The bedpostx_gpu work without error message.

However, when I do PROBTRACKX with the folder of bedpostx_gpu, the fdt_paths.nii.gz showed only showed the region of interest that I drawed.

When I do the same PROBTRACKX with the folder of bedpostx without gpu, the result showed good. I did the same patient with same ROI file.

The difference is only the xxxx.bedpostX folder.

Here is the fdt.log with bedpostx result without gpu.

set tool probtrackx
set probtrack(bedpost_dir) /Volumes/GRAID/prob_tra/sub-CC110045.bedpostX
set probtrack(xfm)
set probtrack(mode) seedmask
set probtrack(exclude_yn) 0
set probtrack(usereference_yn) 0
set probtrack(verbose_yn) 0
set probtrack(loopcheck_yn) 1
set probtrack(modeuler_yn) 0
set probtrack(curvature) 0.2
set probtrack(nsteps) 2000
set probtrack(steplength) 0.5
set probtrack(nparticles) 5000
set probtrack(fibthresh) 0.01
set probtrack(distthresh) 0.0
set probtrack(sampvox) 0.0
set probtrack(oneway_yn) 1
set probtrack(wayorder_yn) 0
set probtrack(waycond) AND
set probtrack(reference) /Volumes/GRAID/prob_tra/sub-CC110045/ROI2.nii.gz
set probtrack(output) /Volumes/GRAID/prob_tra/output4


Here is fdt.log with gpu.

set tool probtrackx
set probtrack(bedpost_dir) /Volumes/GRAID/prob_tra/bedpostx_gpu_s_share/sub-CC110045.bedpostX
set probtrack(xfm)
set probtrack(mode) seedmask
set probtrack(exclude_yn) 0
set probtrack(usereference_yn) 0
set probtrack(verbose_yn) 0
set probtrack(loopcheck_yn) 1
set probtrack(modeuler_yn) 0
set probtrack(curvature) 0.2
set probtrack(nsteps) 2000
set probtrack(steplength) 0.5
set probtrack(nparticles) 5000
set probtrack(fibthresh) 0.01
set probtrack(distthresh) 0.0
set probtrack(sampvox) 0.0
set probtrack(oneway_yn) 1
set probtrack(wayorder_yn) 0
set probtrack(waycond) AND
set probtrack(reference) /Volumes/GRAID/prob_tra/sub-CC110045/ROI2.nii.gz
set probtrack(output) /Volumes/GRAID/prob_tra/output5

What should I check for the BEDPOSTX_gpu?

I appreciate your concern.

Best regards,

KIM

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