Compiler version and offloading errors

JJK — Wed, 29 Oct 2014 14:14:57 GMT

while playing with the offloading examples found on this forum I ran into a little snag:

host A: Scientific Linux 6.5, Intel compiler v14, Xeon Phi 7100, mpss 3.3.2 stack

host B: CentOS 6.5, Intel compiler v15, 2 x Xeon Phi 5100, mpss 3.3.2 stack

When I compile an offload example on host A, then copy it over to host B and I try to run it I get:

[hostB] $ ./offload1.icc14
offload error: target executable is not available

It does not work even if I copy over the offload libraries from icc v14 to the new environment:

[hostB] $  LD_LIBRARY_PATH=icc14 ldd ./offload1.icc14
        linux-vdso.so.1 =>  (0x00007fff3a8f7000)
        libm.so.6 => /lib64/libm.so.6 (0x00007f8486329000)
        liboffload.so.5 => icc14/liboffload.so.5 (0x00007f84860f7000)
        libcilkrts.so.5 => icc14/libcilkrts.so.5 (0x00007f8485eb9000)
        libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00007f8485bb3000)
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f848599c000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f848577f000)
        libc.so.6 => /lib64/libc.so.6 (0x00007f84853eb000)
        libdl.so.2 => /lib64/libdl.so.2 (0x00007f84851e6000)
        libimf.so => icc14/libimf.so (0x00007f8484d1f000)
        libsvml.so => icc14/libsvml.so (0x00007f8484128000)
        libirng.so => icc14/libirng.so (0x00007f8483f20000)
        libiomp5.so => icc14/libiomp5.so (0x00007f8483c05000)
        libintlc.so.5 => icc14/libintlc.so.5 (0x00007f84839af000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f84865bf000)

[hostB] $ LD_LIBRARY_PATH=icc14 ./offload1.icc14
offload error: cannot find MIC executable offload_main
offload error: cannot start process on the device 0 (error code 6)

I have seen error code 14 also).

If I recompile the code everything runs fine under icc 15 as well, but how can I detect this situation? Ideally I would like to compile my code on one host and then distribute it to other nodes with Xeon Phi's. I do not know in advance which version of the icc software is installed on these nodes, so how can I ensure that my compiled program will be future proof?

Appears to be inadvertent

Kevin_D_Intel — Wed, 29 Oct 2014 19:19:42 GMT

Appears to be inadvertent duplicate of https://software.intel.com/en-us/forums/topic/534589

It is, I had problems posting

JJK — Thu, 30 Oct 2014 07:50:30 GMT

It is, I had problems posting to the forum yesterday so I tried it three times; 2 ended up on the forum, one attempt seems to have gone missing.

You can close & remove this thread if you like.

topic It is, I had problems posting in Software Archive

Compiler version and offloading errors

Appears to be inadvertent

It is, I had problems posting