Vectorisation

Installing MPSS

All,

I Recently obtained a xeon-phi and I have been trying to install it. I have centos 6.5. I followed the instruction and installed the mpss service using yum install MPSS. After installing, i do lsmod | grep mic and I can see the mic. Furthermore, I can see xeon phi in lspci -vv

 

ABI compatibility between updates of the Intel C++ compiler

On linux, the intel C++ compiler libraries (eg. libimf.so) don't use soname versioning to indicate ABI compatibility. When intel issues a major upgrade or patch upgrade, are these libraries ABI compatible? eg. if I built a shared library with icc14.0.0, will it still work if I link to the libimf.so from icc 14.0.2? (I presume yes) If I build a shared library with icc13 will it work with the libimf.so from icc14? (I presume no)

issue with MPI communication with two MIC cards and xeon processor

Hello,

I am running a MPI application (involving 5 ranks) which runs smoothly when all ranks are on Xeon processor but when i put two ranks on MIC0 and MIC1 there is following issue and the program just hangs and gives me segmentation fault.

setup:-

using (blocking MPI send and non blocking MPI recv)

rank0, rank1 on MIC0,MIC1

rank2,rank3,rank4 on xeon

issue:-

rank1-->sends 100 packets and reaches finalize() 

rank2-->only receives 60 packets and then hangs

some things i tried:-

Few issues with mic and mpssd

 

As I described in another post, mpss-3.2.1 is running on kernel 3.13.10 perfectly (Fedora 20).

 I can run programs on the processor and have no problems except:

1. mpssd daemon  is taking 100% of one host cpu all the time.

2. If mpssd is not started the coprocessor fan is always on. When mpssd starts it goes off when there is no activity. Since people may not want to use the card all the time the default fan speed should be off or low it seems like.

MKL POISSON LIBRARY ERROR

I am numerically solving Poisson equation using Poisson Solver Routines https://software.intel.com/en-us/node/471042 . The equation has both Neumann and periodic boundary conditions. These boundary condition will go into the parameter 'BCtype.'  In my code, the library seems to not allow me to solve Poisson equation with periodic boundary condition. After I run my code, I received this error message:

"MKL POISSON LIBRARY ERROR:

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