To make it work you have to execute the following instruction:
lsipci | grep accel
fpgaconf -B 0x3b hello_afu.gbs
Above works on nodes n137, n138 and n139.
I hope this helps.
I connected via SSH and tried running the above commands. They didn't work maybe because I am on the login node 'login-1'. By running 'pbdnodes' I am able to view all the compute nodes available but n137, n138 and n139 are not listed among those.
Kindly advise further. Thanks in advance.