Houdini 1.5 from 2011 has a surprise

[Jouni]

Houdini 1.5a x64
(c) 2010-11 Robert Houdart

info string POPCNT available
info string 128 MB Large Page Hash

Stockfish got them 2020. BTW has Komodo Large Pages?

[Jouni]

[d]3qk3/8/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1

Analysis by Houdini 1.5a x64:

1. +- (#11): 1.e4 Qd4 2.Qg4 Ke7 3.Nc3 Kf7 4.Nf3 Qd6 5.Qc8 Qf8 6.Ng5+ Kg7 7.Ne6+ Kf7 8.Qxf8+ Kxe6 9.Nd5 Kd7 10.Qe7+ Kc8 11.Qc7#
2. +- (#11): 1.Nc3 Qc7 2.e4 Qg7 3.Qh5+ Qf7 4.Qh6 Qf8 5.Qc6+ Kf7 6.Bc4+ Kg7 7.d3 Kh8 8.d4 Kh7 9.Qe6 Kh8 10.Qh3+ Kg7 11.Qh6#
3. +- (#12): 1.d4 Qh4 2.Nc3 Qg4 3.Qd3 Kf7 4.e4 Qe6 5.Qb5 Kf8 6.Bc4 Qd7 7.Qb8+ Qe8 8.Qf4+ Ke7 9.Nd5+ Ke6 10.Qe5+ Kd7 11.Bb5+ Kc8 12.Qc7#

[mjlef]

Houdini 1.5a x64
(c) 2010-11 Robert Houdart

info string POPCNT available
info string 128 MB Large Page Hash

Stockfish got them 2020. BTW has Komodo Large Pages?

No, Komodo does not support large pages. It is trivial to add, but requires users to act as administrators to set up the pages, and after a while memory gets too fragmented for them to be of much use. But if enough people ask for it we can add it.

Mark

[Jouni]

I haven't noticed any fragmentation after some weeks large pages use.

[RubiChess]

Houdini 1.5a x64
(c) 2010-11 Robert Houdart

info string POPCNT available
info string 128 MB Large Page Hash

Stockfish got them 2020. BTW has Komodo Large Pages?

No, Komodo does not support large pages. It is trivial to add, but requires users to act as administrators to set up the pages, and after a while memory gets too fragmented for them to be of much use. But if enough people ask for it we can add it.

Mark

No need to run the engine as administrator. Just needs to give SeLockMemoryPrivilege once.

Andreas

[Dann Corbit]

I haven't noticed any fragmentation after some weeks large pages use.

I see it all the time.
If I want to use 100GB hash with large pages, I usually have to reboot.

[kasinp]

I haven't noticed any fragmentation after some weeks large pages use.

I see it all the time.
If I want to use 100GB hash with large pages, I usually have to reboot.

Dann,
You may want to give this a try: https://www.wisecleaner.com/wise-memory-optimizer.html
On my 64GB machine the optimization takes less than a minute and it certainly beats rebooting just for this purpose.
I have been using it since ca. 2016 for exactly this purpose.

Peter

[Dann Corbit]

I haven't noticed any fragmentation after some weeks large pages use.

I see it all the time.
If I want to use 100GB hash with large pages, I usually have to reboot.

Dann,
You may want to give this a try: https://www.wisecleaner.com/wise-memory-optimizer.html
On my 64GB machine the optimization takes less than a minute and it certainly beats rebooting just for this purpose.
I have been using it since ca. 2016 for exactly this purpose.

Peter

Thanks, that will be a big help.
I have a zillion services on my machine and booting takes a while.

[Harvey Williamson]

I haven't noticed any fragmentation after some weeks large pages use.

I see it all the time.
If I want to use 100GB hash with large pages, I usually have to reboot.

Dann,
You may want to give this a try: https://www.wisecleaner.com/wise-memory-optimizer.html
On my 64GB machine the optimization takes less than a minute and it certainly beats rebooting just for this purpose.
I have been using it since ca. 2016 for exactly this purpose.

Peter

Thanks from me also. That is very useful.

[kasinp]

I haven't noticed any fragmentation after some weeks large pages use.

I see it all the time.
If I want to use 100GB hash with large pages, I usually have to reboot.

Dann,
You may want to give this a try: https://www.wisecleaner.com/wise-memory-optimizer.html
On my 64GB machine the optimization takes less than a minute and it certainly beats rebooting just for this purpose.
I have been using it since ca. 2016 for exactly this purpose.

Peter

Thanks from me also. That is very useful.

Glad to hear it, cheers.