I will be getting another RasPi soon. Since RasPi's do not have any way of connecting them as if they were a dual-core computer - I will be using LAM-MPI to connect them over Ethernet.
Since as yet Stockfish etc don't support clustering via MPI - does anyone know of the strongest engine which does?
Scorpio immediately comes to mind, and I think I remember hearing rumours of a ClusterToga.
Matthew:out
Strongest MPI-capable (cluster) engine?
Moderators: hgm, Rebel, chrisw
-
- Posts: 1334
- Joined: Sun Jul 17, 2011 11:14 am
Strongest MPI-capable (cluster) engine?
Some believe in the almighty dollar.
I believe in the almighty printf statement.
I believe in the almighty printf statement.
-
- Posts: 1600
- Joined: Mon Feb 21, 2011 9:48 am
Re: Strongest MPI-capable (cluster) engine?
Mattew:
Follow this link if you do not know the forum can entertain,
There have codes.
http://www.computerchess.info/tdbb/phpB ... ?f=9&t=577
Greetings, Chema.
Follow this link if you do not know the forum can entertain,
There have codes.
http://www.computerchess.info/tdbb/phpB ... ?f=9&t=577
Greetings, Chema.
-
- Posts: 1334
- Joined: Sun Jul 17, 2011 11:14 am
Re: Strongest MPI-capable (cluster) engine?
Thank you very much for showing me that link - I thought it was buried in the developer's section in the Toga forum.
Matthew:out
Matthew:out
Some believe in the almighty dollar.
I believe in the almighty printf statement.
I believe in the almighty printf statement.
-
- Posts: 4185
- Joined: Tue Mar 14, 2006 11:34 am
- Location: Ethiopia
Re: Strongest MPI-capable (cluster) engine?
Hi Mathew,ZirconiumX wrote:I will be getting another RasPi soon. Since RasPi's do not have any way of connecting them as if they were a dual-core computer - I will be using LAM-MPI to connect them over Ethernet.
Since as yet Stockfish etc don't support clustering via MPI - does anyone know of the strongest engine which does?
Scorpio immediately comes to mind, and I think I remember hearing rumours of a ClusterToga.
Matthew:out
Yes both scorpio and Toga work, and DeepSjeng or Rybka if you can get your hands on them. I tested scorpio/toga on smp machines and they showed somewhat good scaling for upto 4 processors but tests on mpi cluster is a complicated matter. Depending on the inter connect you can get pretty low scaling or none at all. One thing 'unique' about scorpio is that if you have 2 quad cores interconnect with infiniband then you can start two processes and 4 threads to use SMP at each node. Most mpi engines I know just start 8 processes per core.
Daniel
-
- Posts: 1334
- Joined: Sun Jul 17, 2011 11:14 am
Re: Strongest MPI-capable (cluster) engine?
Cluster Toga - does anyone have a dropbox link that I can easily use wget on?
Scorpio - Asserts and dies. The assertion is on malloc.c line 3096.
Matthew:out
Scorpio - Asserts and dies. The assertion is on malloc.c line 3096.
Matthew:out
Some believe in the almighty dollar.
I believe in the almighty printf statement.
I believe in the almighty printf statement.
-
- Posts: 1822
- Joined: Thu Mar 09, 2006 11:54 pm
- Location: The Netherlands
Re: Strongest MPI-capable (cluster) engine?
Diep?ZirconiumX wrote:I will be getting another RasPi soon. Since RasPi's do not have any way of connecting them as if they were a dual-core computer - I will be using LAM-MPI to connect them over Ethernet.
Since as yet Stockfish etc don't support clustering via MPI - does anyone know of the strongest engine which does?
Scorpio immediately comes to mind, and I think I remember hearing rumours of a ClusterToga.
Matthew:out
-
- Posts: 1334
- Joined: Sun Jul 17, 2011 11:14 am
Re: Strongest MPI-capable (cluster) engine?
Does Diep run on a Raspberry Pi?
I thought not.
Matthew:out
I thought not.
Matthew:out
Some believe in the almighty dollar.
I believe in the almighty printf statement.
I believe in the almighty printf statement.
-
- Posts: 98
- Joined: Tue Jul 26, 2011 12:18 am
- Location: London
Re: Strongest MPI-capable (cluster) engine?
I'm still waiting 3 months after ordering mine. At this rate it would take over a year to build a 4 core cluster. Wouldn't you do better just buying an AMD FX-8150 with 8 cores on chip? if you got really bored then you could try clustering those things together. I suspect it would be way cheaper too. I can't decide what to do with my RasPi (assuming they ever send me one) - it might go into an arcade machine I'm building or I might have a go at a touch screen MP3 jukebox for the garage.ZirconiumX wrote:I will be getting another RasPi soon. Since RasPi's do not have any way of connecting them as if they were a dual-core computer
-
- Posts: 1334
- Joined: Sun Jul 17, 2011 11:14 am
Re: Strongest MPI-capable (cluster) engine?
Who are you ordering from? Farnell are pretty nippy - I got my second Pi yesterday.mike_bike_kite wrote:I'm still waiting 3 months after ordering mine. At this rate it would take over a year to build a 4 core cluster. Wouldn't you do better just buying an AMD FX-8150 with 8 cores on chip? if you got really bored then you could try clustering those things together. I suspect it would be way cheaper too. I can't decide what to do with my RasPi (assuming they ever send me one) - it might go into an arcade machine I'm building or I might have a go at a touch screen MP3 jukebox for the garage.ZirconiumX wrote:I will be getting another RasPi soon. Since RasPi's do not have any way of connecting them as if they were a dual-core computer
You go and order your AMD. And your motherboard. And your heatsink. Etc.
I'm pretty sure the Pi is cheaper.
Isn't Bulldozer terrible at chess?
Matthew:out
Some believe in the almighty dollar.
I believe in the almighty printf statement.
I believe in the almighty printf statement.
-
- Posts: 98
- Joined: Tue Jul 26, 2011 12:18 am
- Location: London
Re: Strongest MPI-capable (cluster) engine?
I ordered mine through RS Online on May 6th. I get occasional emails to offer apologies etc. I'd prefer to have the item though.ZirconiumX wrote:Who are you ordering from? Farnell are pretty nippy - I got my second Pi yesterday.
About £150 for the processor, £100 for the motherboard, £40 for 4GB RAM and a fan £20 = £310 for 8 cores running at nearly 4Ghz with 4GB RAM. 8 Raspberry Pi's will cost approx £160 which is definitely cheaper but then your 8 "cores" will only be running at 0.7Ghz with 256MB RAM.ZirconiumX wrote:You go and order your AMD. And your motherboard. And your heatsink. Etc.
I'm pretty sure the Pi is cheaper.
I honestly don't know - I'd assume having 8 integer cores would be ok (assuming your program could use them) but perhaps it's an issue with the lack of L3 Cache - don't know. I'm guessing that if you just wanted a strong chess playing machine that sticking the current best program on any modern processor would be more than enough.ZirconiumX wrote:Isn't Bulldozer terrible at chess?
Is the RasPi supposed to be making a name for itself in the chess arena then
Mike