Re: [OMPI users] Porting Open MPI

2013-05-21 Thread Jeff Squyres (jsquyres)
You should probably post your question over on the devel list; this list is more for user-level questions about using Open MPI. On May 21, 2013, at 6:12 PM, jhonatan alves wrote: > Sorry, we wanted to say We are trying port Open MPI > Initially we tried to port MPICH but the OS developer s

Re: [OMPI users] Porting Open MPI

2013-05-21 Thread jhonatan alves
Sorry, we wanted to say We are trying port Open MPI Initially we tried to port MPICH but the OS developer suggested that we port Open MPI because there is an old port of MPICH. Thanks. 2013/5/21 jhonatan alves > > Hello, > We are trying port MPICH to a new operating system, called EPOS, bu

[OMPI users] Porting Open MPI

2013-05-21 Thread jhonatan alves
Hello, We are trying port MPICH to a new operating system, called EPOS, but our main problem at the moment is that this operating system is not POSIX compatible. Our question is there some way to know what are the OS dependencies of Open MPI? Is there a porting manual of Open MPI? Is there a docume

Re: [OMPI users] Porting Open MPI to ARM: How essential is the opal_sys_timer_get_cycles() function?

2010-09-27 Thread Jeff Squyres
On Sep 23, 2010, at 1:24 PM, Ken Mighell wrote: > Would a hack written in C suffice? Assembly is always better, but C should be fine. If you really want to, could you write it in C and have the compiler generate optimized assembly for you. -- Jeff Squyres jsquy...@cisco.com For corporate lega

[OMPI users] Porting Open MPI to ARM: How essential is the opal_sys_timer_get_cycles() function?

2010-09-23 Thread Ken Mighell
Dear Open MPI, How essential is Open MPI's opal_sys_timer_get_cycles() function? It apparently needs to access a timestamp register directly. That is a trivial operation in PPC (mftb) or x86 (tsc), but the ARM processor apparently doesn't have a similar function in its instruction set. Is it cr