F@H...on a fast computer...read this

[Over Achiever]

Isn't UNICOS similar to UNIX? So wouldn't the Unix/Linux version work?

 

[MrMacMan]

I'm pritty sure they have one that *could* work and yes UNICOS is only slightly different than its *nix counterparts.

so it is possible.

 

[Catfish_Man]

Re: Re: This?

Originally posted by MacBandit


My Dual/GHz/DDR PowerMac can provide up to 10GFlops in real world applications so what's the big deal about an old Cray that can only achieve 8GFlops?

"Cray SV1ex also provides high-end developers designing new applications access to a new innovative architecture-the Multi-Streaming Processor (MSP). MSP combines four 2 GFLOPS processors to create one eight-vector pipe processor that delivers 8 GFLOPS peak performance. The system dynamically reconfigures the combination of MSP and standard processors based on the system workload." (from the cray page)

So, that's 8GFLOPS per "Multi-Streaming Processor", in addition to the 2GFLOP normal processors. Also, Crays have a MUCH more balanced architecture than G4s, so I imagine even one of those MSPs could sustain much higher GFLOPS than your G4. In addition, non-Altivec tasks on a G4 run at a max of 2 GFLOPS @1GHz, or 4.5 GFLOPS@dual 1.25GHz (1 FMADD per clock cycle).

Performance for an entire Cray SV-1 ranges from 19.2 to 153.6 GFLOPS. The SV1ex ranges from 32 to 256 GFLOPS. RAM ranges from 4 to 128 GB.

 

[Over Achiever]

Re: Re: Re: This?

Originally posted by Catfish_Man
Performance for an entire Cray SV-1 ranges from 19.2 to 153.6 GFLOPS. The SV1ex ranges from 32 to 256 GFLOPS. RAM ranges from 4 to 128 GB.

 

[MacBandit]

Re: Re: Re: This?

Originally posted by Catfish_Man


"Cray SV1ex also provides high-end developers designing new applications access to a new innovative architecture-the Multi-Streaming Processor (MSP). MSP combines four 2 GFLOPS processors to create one eight-vector pipe processor that delivers 8 GFLOPS peak performance. The system dynamically reconfigures the combination of MSP and standard processors based on the system workload." (from the cray page)

So, that's 8GFLOPS per "Multi-Streaming Processor", in addition to the 2GFLOP normal processors. Also, Crays have a MUCH more balanced architecture than G4s, so I imagine even one of those MSPs could sustain much higher GFLOPS than your G4. In addition, non-Altivec tasks on a G4 run at a max of 2 GFLOPS @1GHz, or 4.5 GFLOPS@dual 1.25GHz (1 FMADD per clock cycle).

Performance for an entire Cray SV-1 ranges from 19.2 to 153.6 GFLOPS. The SV1ex ranges from 32 to 256 GFLOPS. RAM ranges from 4 to 128 GB.

I was simply making a statement/question and I guess I got my answer but for some reason I feel like I just got a serious bitch slapping.

 

[yzeater]

so there !

 

[pgwalsh]

Originally posted by yzeater
so there !

So what's the deal holyfield? When are you going to know?

 

[yzeater]

We have to wait till the next meeting about the Cray...I'm not quite sure when it is

 

[MrMacMan]

Originally posted by yzeater
We have to wait till the next meeting about the Cray...I'm not quite sure when it is

Remember ask if it is *nix Compatible. Maybe we could try the command line or the Linux version or if there is a real *nix one out there.

That cray system is insane.

 

[Catfish_Man]

Re: Re: Re: Re: This?

Originally posted by MacBandit


I was simply making a statement/question and I guess I got my answer but for some reason I feel like I just got a serious bitch slapping.

Heh. Sorry about that, it was a bit harsh.

 

[yzeater]

The Cray is *nix compatible

 

[MrMacMan]

Excelent.

 

[bousozoku]

Maybe someday Stanford will have access to one so that they can compile their source code and folding will be possible or maybe it's got a x86-compatibility mode until that time.