Hello Hideki,
Ingo, now Zengg19 is running in Computer Go room as a rank-free bot
with 30 minutes sd. It's running on a (mini) cluster of four Intel
quad-core handcraft computers.
Thank you for that Christmas surprise.
And Cluster-Zen's performance on cgos is impressive, indeed:
Ingo, now Zengg19 is running in Computer Go room as a rank-free bot
with 30 minutes sd. It's running on a (mini) cluster of four Intel
quad-core handcraft computers.
Hideki
Ingo Althöfer: 20091124200643.255...@gmx.net:
Hideki replied:
Do I have a Christmas wish for free already?
It is: Let
In your (or Sylvain's?) recent paper, you wrote less than one second
interval was useless. I've observed similar. I'm now evaluating the
performance with 0.2, 0.4, 1 and 4 second intervals for 5 second per
move setting on 19x19 board on 32 nodes of HA8000 cluster.
Yes, one second is fine
Olivier Teytaud: aa5e3c330911250005v1d434a5bj8a09067a620ef...@mail.gmail.com:
In your (or Sylvain's?) recent paper, you wrote less than one second
interval was useless. I've observed similar. I'm now evaluating the
performance with 0.2, 0.4, 1 and 4 second intervals for 5 second per
move
Even if the sum-up is done in a logarithmic time (with binary tree
style), the collecting time of all infomation from all nodes is
proportional to the number of nodes if the master node has few
communication ports, isn't it?
No (unless I misunderstood what you mean, sorry in that case!) !
Olivier Teytaud: aa5e3c330911250119x5e01fa32w2e5f3db68704d...@mail.gmail.com:
Even if the sum-up is done in a logarithmic time (with binary tree
style), the collecting time of all infomation from all nodes is
proportional to the number of nodes if the master node has few
communication ports,
Interesting, surely the order is almost logarithmic. But how long it
takes a packet to pass through a layer. I'm afraid the actual delay
time may increase.
With gigabit ethernet my humble opinion is that you should have no problem.
But, testing what happens if you artificially cancel the
Hideki Kato wrote:
I'm now testing a cluster version of Zen (Zengg-4x4c-tst), developed
by a joint project with Yamato, on cgos 19x19. It wons, however, all
games (except first one with timeout due to a bug). Running more
strong programs are very appreciated.
Hideki, thx for your
Ingo Althöfer: 20091124190802.303...@gmx.net:
Hideki Kato wrote:
I'm now testing a cluster version of Zen (Zengg-4x4c-tst), developed
by a joint project with Yamato, on cgos 19x19. It wons, however, all
games (except first one with timeout due to a bug). Running more
strong programs are
Hideki replied:
Do I have a Christmas wish for free already?
It is: Let the cluster also run on KGS - against the humans.
I'd like to do so but it's not allowed to connect the
cluster to the Internet, sigh.
Hmm. As CGOS is also Internet, it seems that Zen-author
does not allow you to
Ingo Althöfer: 20091124200643.255...@gmx.net:
Hideki replied:
Do I have a Christmas wish for free already?
It is: Let the cluster also run on KGS - against the humans.
I'd like to do so but it's not allowed to connect the
cluster to the Internet, sigh.
Hmm. As CGOS is also Internet, it
Hi Hideki,
Is Zen-Author reading here?
Maybe, he can rethink about the possibility.
He is sleeping now 'cause it's 5:30 am in Japan :).
Ok, let him his good sleep.
I want Cluster-Zen for Christmas, Cluster-Zen-for Christmas,
Cluster-Zen for Christmas, please, please, please, please...
In message 4b0c4522.370%hideki_ka...@ybb.ne.jp, Hideki Kato
hideki_ka...@ybb.ne.jp writes
Ingo Althöfer: 20091124200643.255...@gmx.net:
Hideki replied:
Do I have a Christmas wish for free already?
It is: Let the cluster also run on KGS - against the humans.
I'd like to do so but it's not
Hi Nick,
I'll perticipate comming tournaments as much as possible but it's
still under development and needs much more work and time for full
performance.
Since my mini cluster uses usual Gigabit Ether, which is much slower
than expensive Infiniband or such high speed network devices, it
Also, on 19x19 board, current 16-core cluster version performs almost
the same as 8-core shared memory pc such as Mac Pro, which Yamato used
for KGS.
Hi Hideki,
Is that difference due to a scaling limit of Zen, or is this due to the
cluster overhead? Would moving from gigabit to infiniband
Darren Cook: 4b0c6706.7070...@dcook.org:
Also, on 19x19 board, current 16-core cluster version performs almost
the same as 8-core shared memory pc such as Mac Pro, which Yamato used
for KGS.
Hi Hideki,
Is that difference due to a scaling limit of Zen, or is this due to the
cluster overhead?
The performance gap is perhaps due to the algorithms. Almost all
cluster versions of current strong programs (MoGo, MFG, Fuego and Zen)
use root parallel while shared memory computers allow us to use thread
parallelism, which gives better performance.
I think you should not have troubles
Thank you Oliver,
Olivier Teytaud: aa5e3c330911242304tc6b9e1bk466b1f08cb65d...@mail.gmail.com:
The performance gap is perhaps due to the algorithms. Almost all
cluster versions of current strong programs (MoGo, MFG, Fuego and Zen)
use root parallel while shared memory computers allow us to
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