unfortunately I am not a programmer, only a tester.
Unless there is a compile released that will restrict Stockfish to 1cpu without wrecking the node count (and therefore performance), I will be unable to test it.
It would be great to be able to test Stockfish 1cpu on a dual or quad.
Regards, Graham.
Yes, I understund. I can compile for you a version of Stockfish for one cpu, probaby my compile is not as fast as the Jim one but at least can be useful to understand the problem.
What is the CPU type on which you are going to test ? is it the Dual Core AMD Opteron ?
In this case I will prepare a version that set's the thread number to 2 as a fixed value. It is the optimal value for that kind of CPU.
Thanks for your time
Marco
What I would like if possible is a Stockfish that will use 1cpu only no matter what.
Other CCRL testers will test the multi-cpu version, but I currently restrict my testing to 1cpu versions only, even though I use dual computers.
Perhaps Jim or Dann can do such a compile?
Cheers, Graham.
Hi Graham,
I did some testing on my Core Duo comp. No problems, works fine for me with 1 thread selected.
I've done some more builds, these use POSIX threads instead of Windows ones. Maybe they'll work better for your system.
I did some testing on my Core Duo comp. No problems, works fine for me with 1 thread selected.
I've done some more builds, these use POSIX threads instead of Windows ones. Maybe they'll work better for your system.
I did some testing on my Core Duo comp. No problems, works fine for me with 1 thread selected.
I've done some more builds, these use POSIX threads instead of Windows ones. Maybe they'll work better for your system.
I did some testing on my Core Duo comp. No problems, works fine for me with 1 thread selected.
I've done some more builds, these use POSIX threads instead of Windows ones. Maybe they'll work better for your system.
If still not working right, I'll compile some gcc-cygwin builds for you to test later.
Jim.
Thanks Jim. You're a champion and I really appreciate your trying to help out. I'll try this compile and let you know how I get on.
Cheers, Graham.
Still no joy with this build Jim. Same problem. Sorry to be a pain.
Graham.
Should have contacted me first. Do it my way if you want it to work perfectly. All this rebooting and setting to 2 threads first is an utter waste of time. Im running a dual- and it works as it is supposed to on one thread. PLENTY OF KNS. One of these days you wil learn to contact the expert first.
I did some testing on my Core Duo comp. No problems, works fine for me with 1 thread selected.
I've done some more builds, these use POSIX threads instead of Windows ones. Maybe they'll work better for your system.
If still not working right, I'll compile some gcc-cygwin builds for you to test later.
Jim.
Thanks Jim. You're a champion and I really appreciate your trying to help out. I'll try this compile and let you know how I get on.
Cheers, Graham.
Still no joy with this build Jim. Same problem. Sorry to be a pain.
Graham.
Should have contacted me first. Do it my way if you want it to work perfectly. All this rebooting and setting to 2 threads first is an utter waste of time. Im running a dual- and it works as it is supposed to on one thread. PLENTY OF KNS. One of these days you wil learn to contact the expert first.
George good to see that you are back testing for the CCRL, now Graham does not have to do everything by himself! Could you share with us your solution for the threading problem?
I still think something must be wrong, if you set threads = 1 Stockfish should not be trying to use more, this should override looking for more CPUs or at least put all the remaining threads to sleep in the way Tord implemented this in Glaurung.
I did some testing on my Core Duo comp. No problems, works fine for me with 1 thread selected.
I've done some more builds, these use POSIX threads instead of Windows ones. Maybe they'll work better for your system.
If still not working right, I'll compile some gcc-cygwin builds for you to test later.
Jim.
Thanks Jim. You're a champion and I really appreciate your trying to help out. I'll try this compile and let you know how I get on.
Cheers, Graham.
Still no joy with this build Jim. Same problem. Sorry to be a pain.
Graham.
Should have contacted me first. Do it my way if you want it to work perfectly. All this rebooting and setting to 2 threads first is an utter waste of time. Im running a dual- and it works as it is supposed to on one thread. PLENTY OF KNS. One of these days you wil learn to contact the expert first.
George good to see that you are back testing for the CCRL, now Graham does not have to do everything by himself! Could you share with us your solution for the threading problem?
I still think something must be wrong, if you set threads = 1 Stockfish should not be trying to use more, this should override looking for more CPUs or at least put all the remaining threads to sleep in the way Tord implemented this in Glaurung.
Regards, Eelco
Thanks for your kind words Eelco. Actually i was being serious, tho kind of just having some fun with Graham also. I am still using the ORIGINAL version that first came out, and i have had no problems with it in Fritz 11. What i did- before clicking ok to load the engine, i clicked on parameters and changed them at that time, before loading. Then they were the default parameters. Of course that required me to add something to the name- anything- it doesnt matter. So by JA in the name i added Build so the name said "JA Build" Now i have 1 thread as default in parameters and never have to worry with changing the parameters for using 1 CPU. Did this method cause it to work right and just use 1 cpu? I dont know. I never tried it the other way. It works, so that was enough for me.
