scif_open: Permission denied

[Minh_H_]

Hi,

System: Ubuntu 14.04.1 LTS, MPSS 3.4.1, parallel_studio_xe_2015_update1 and  g++ (Ubuntu 4.8.2-19ubuntu1) 4.8.2.

I am trying to use scif for communication with mic. However on the host node, I got the following error when calling scif_open

Error no: 13, msg: Permission denied

However when I run problem in sudo mode, it works fine.

How can I fix this problem?

  Thanks

[Frances_R_Intel]

If you had said your program was dying in scif_bind, I would have asked- Is the port number greater than 1024? Smaller port numbers are privileged and can only be assigned by root. But scif_open shouldn't return a permission denied. It should only return  insufficient memory or library version mismatch. Could you confirm that the program really is in scif_open when it dies and check that the port you are using is greater than 1024?

[Minh_H_]

Hi Frances,

It was sci_open. However it seems to me that problem was specific to Ubuntu, not Centos.

Example (Ubuntu 14.04)

/usr/share/doc/scif/tutorials/

 ./scif_accept_host -l 2050 -s 1024 -b 1
scif_open failed with error -1

sudo ./scif_accept_host -l 2050 -s 1024 -b 1
scif_bind to port 2050 success

  Thanks

[Minh_H_]

I has fixed it now.

Change permission of /dev/mic/scif

sudo chmod o+w  /dev/mic/scif

[Luo_x_]

      Could you please post the way you compile the source code of MPSS on ubuntu and the way you install MPSS? Thank you.

    This is my email: 13298652700@163.com. Thank you.

[Minh_H_]

Follow this link: https://software.intel.com/en-us/forums/intel-many-integrated-core/topic/532329