Re: Re: mosix and debian amd64

[tomek.fizyk@op.pl]

Użytkownik Phil Mendelsohn <phil@rephil.org> napisał:
>tomek.fizyk@op.pl wrote:
>
>> As for MPI, afaik it is some library that has to be linked with a
>> program and the program has to use some functions of the library.
>> That means making the code dependant on the library.
>
>Message Passing Interface.  More of a protocol than a library, i.e., I 
>believe you could re-implement the MPI standard if you want.
>
>> When using mosix the code doesn't have to be modiffied - it can be
>> run either on a single machine (with no cluster specific software
>> installed) or on a cluster.
>
>One of the big things many people want to do with a cluster is parallel 
>processing.  That's what MPI is for, or at least where it came from.  If 
>you're doing parallel processing, then you're likely considering it at 
>the algorithmic level, and are going to be dependent on _many_ things. 
>This sort of code doesn't can't be made arbitrarily portable, though MPI 
>helps.
>
>If you're after high-availability, that's a different deal -- the app in 
>question can run in several instances on different machines, and the 
>odds of all of them barfing at once are expected to be really long.
>
>What is it you're trying to do?
>
>Phil Mendelsohn

Thanks for the explanation.

At the moment I'm doing some calculations that sometimes are made
on a single machine and sometimes on a cluster with mosix.

I've started this thread because I wanted to know if there is some
64bit mosix kernel for debian (I've already got an answer) because
the cluster consists of 64bit machines but the only mosix kernel
available is the 32bit one and the cluster runs on an i386 Sarge.

A person who owns the cluster knows about those MPI and PVM
libraries but uses mosix because he belives this is a better solution
for the problems we're dealing with.

I am subscribed to this list so I thought this is a good place to ask
about the 64bit mosix kernel, as he haven't heared about it either.

Tomek