JA modifications >
Added auto cpu/core detection (use on command line -cpu <no of cpus/cores to use>) to overrride
Fixed opening book creation and use (book.db/ecodb) under Windows
I'm finding that Amy only reports evaluation from the engine point of view, when I'd like the option of evaluation from the white point of view.
Any chance that this option could be added?
Jim Ablett wrote: ↑Sat Jan 04, 2025 11:07 pm
I've got some new avx512 capable hardware now
Here's a new Windows avx512 build of Igel 3.6.0. In my tests slightly faster than the bmi2 compile.
Not by much, but every little bit helps https://drive.proton.me/urls/0T4X53HHFW#I9HUxb4wUZ4B
Jim.
Congrats Jim, it´s here about 10% faster on a AMD Processor,
I think you have too a new AMD, as Intel does no longer support AVX512
Jim Ablett wrote: ↑Sat Jan 04, 2025 11:07 pm
I've got some new avx512 capable hardware now
Here's a new Windows avx512 build of Igel 3.6.0. In my tests slightly faster than the bmi2 compile.
Not by much, but every little bit helps https://drive.proton.me/urls/0T4X53HHFW#I9HUxb4wUZ4B
Jim.
Congrats Jim, it´s here about 10% faster on a AMD Processor,
I think you have too a new AMD, as Intel does no longer support AVX512
Hi Werner,
Glad it works. No it's Intel. I picked up a little Intel NUC with an i3-8121u for £130 which supports Avx512
JA modifications >
Added auto cpu/core detection (use on command line -cpu <no of cpus/cores to use>) to overrride
Fixed opening book creation and use (book.db/ecodb) under Windows
I'm finding that Amy only reports evaluation from the engine point of view, when I'd like the option of evaluation from the white point of view.
Any chance that this option could be added?
Hi Graham,
I noticed that too while testing. I assumed there was an option somewhere in the rc file to change that but it seems not.
Should be easy to add that option. I'll take a look.
JA modifications >
Added auto cpu/core detection (use on command line -cpu <no of cpus/cores to use>) to overrride
Fixed opening book creation and use (book.db/ecodb) under Windows
I'm finding that Amy only reports evaluation from the engine point of view, when I'd like the option of evaluation from the white point of view.
Any chance that this option could be added?
Hi Graham,
I noticed that too while testing. I assumed there was an option somewhere in the rc file to change that but it seems not.
Should be easy to add that option. I'll take a look.
Jim.
I have updated the download package with new builds - same download link.
Engine reports evaluation only from white pov now.
I added avx2/bmi2/avx512 intrinsics to the bitboard code - new avx512 build included.
JA modifications >
Added auto cpu/core detection (use on command line -cpu <no of cpus/cores to use>) to overrride
Fixed opening book creation and use (book.db/ecodb) under Windows
I'm finding that Amy only reports evaluation from the engine point of view, when I'd like the option of evaluation from the white point of view.
Any chance that this option could be added?
Hi Graham,
I noticed that too while testing. I assumed there was an option somewhere in the rc file to change that but it seems not.
Should be easy to add that option. I'll take a look.
Jim.
I have updated the download package with new builds - same download link.
Engine reports evaluation only from white pov now.
I added avx2/bmi2/avx512 intrinsics to the bitboard code - new avx512 build included.
I don't know if it's a compiler or source code bug, but both under WIN 10 and WIN 11 the engine crashes with more than one thread, even in command mode e.g. with “setoption name Threads value 2”.
