Re: OpenSSI & Infiniband

"Vincent Diepeveen" <[email protected]>
Newsgroups gmane.linux.cluster.ssic.user
Message-ID <003701c690fe$b565fa10$9600000a@gourmandises>
Sure 'support', but if he cares about latency then using openSSI with a 
highend interconnect
is not a good idea.

It's shipping like what is it 2048 bytes at ones in openSSI or so?

The actual latency you'll get confronted with is very very ugly for 
software,
as compared to a dedicated solution that uses MPI at infiniband.

For software using short messages the pain may be very bad. Factor 20+ or so 
that you
lose.

Vincent


----- Original Message ----- 
From: "Ivan Krstic" <[email protected]>
To: "Vincent Diepeveen" <[email protected]>
Cc: "Hugo Segura" <[email protected]>; 
<[email protected]>
Sent: Wednesday, June 14, 2006 6:30 PM
Subject: Re: [SSI-users] OpenSSI & Infiniband


> Vincent Diepeveen wrote:
>> Things like SSI are for toying with 100mbit interconnects at home and
>> with latencies that belong to that.
>
> That's cute, but wrong. OpenSSI had working Infiniband support at some
> point in the past, if I recall correctly.
>
> -- 
> Ivan Krstic <[email protected]> | GPG: 0x147C722D
>
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