[erlang-questions] Erlang on supercomputers

Bengt Kleberg <>
Fri Apr 20 07:17:47 CEST 2007


On 2007-04-19 22:52, Chad Brewbaker wrote:
> The problems with Bluegene/L are:
> 
> 1. The compute node kernel only allows user process per CPU. I haven't 
> looked into the Erlang source much, but all threading must be "green".

it is possible to disable smp, you choose at compile time. (actually you 
could compile with smp but not use it, but that would be slower).


> 2. Communication is done over MPI in C/C++/Fortran. There is no API for 
> doing TCP/IP communication I know of, but if you are feeling lucky you 
> can use un-documented low level communication API's.

erlang uses tcp/ip.


bengt
-- 
Those were the days...
    EPO guidelines 1978: "If the contribution to the known art resides
    solely in a computer program then the subject matter is not
    patentable in whatever manner it may be presented in the claims."



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