Re: [OMPI devel] btl_openib_exclusivity

[George Bosilca]

All BTLs have the exclusivity MCA parameter. This indicate how friendly a BTL is about sharing the communications with others BTLs. A very high exclusivity means there will be only one BTL. A low exclusivity means multiple BTLs can co-exist and work together to send the same message. All high performance networks by default have a high exclusivity, in order to make sure they don't get used together with something a lot slower (such as TCP).

  george.

On Jun 5, 2007, at 3:40 PM, Mohamad Chaarawi wrote:

I was going through the MCA btl parameters for openib and came across this

parameter in which i didn't get what it actually does:

MCA btl: parameter "btl_openib_exclusivity" (current value: "1024")
                          BTL exclusivity (must be >= 0)

anybody has any idea?


--
Mohamad Chaarawi
Instructional Assistant           http://www.cs.uh.edu/~mschaara
Department of Computer Science    University of Houston
4800 Calhoun, PGH Room 526        Houston, TX 77204, USA

_______________________________________________
devel mailing list
de...@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/devel

smime.p7s
Description: S/MIME cryptographic signature