Re: [linux-audio-dev] DSP and clusters

New Message Reply About this list Date view Thread view Subject view Author view Other groups

Subject: Re: [linux-audio-dev] DSP and clusters
From: Jussi Laako (jussi_AT_jlaako.pp.fi)
Date: Fri Apr 07 2000 - 21:33:53 EEST


Jussi Laako wrote:
>
> Single precision test
> Using 3 nodes
> Using 1 CPUs / node
> Iterations: 12 Source length: 220500 Sector count: 180
> (862 kB memory block * 2)
> Running...
> Master complete, collecting results...
> Time elapsed 73 seconds (results 3.68e-11, 484)
> Processing speed 99.53 MB/s, 24.88 MS/s, 45.66 MFLOPS

How to read this? 12 iterations * 5 seconds of data = 60 seconds.
As you can see, it took 73 seconds using all my computing hardware. Not
enough for realtime processing of 180 sectors (beams). With real system I
can run roughly 90 beams using two channels. Imagine system with 32 or more
channels and 180 or more beams...

 - Jussi Laako

-- 
PGP key fingerprint: 161D 6FED 6A92 39E2 EB5B  39DD A4DE 63EB C216 1E4B
Available at: ldap://certserver.pgp.com, http://keys.pgp.com:11371


New Message Reply About this list Date view Thread view Subject view Author view Other groups

This archive was generated by hypermail 2b28 : Fri Apr 07 2000 - 22:15:41 EEST