Ufasoft Miner - Windows/Linux, x86/x64, SSE2/OpenCL, Open Source - page 36.

d3m0n1q_733rz

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Quote from: yetis on July 05, 2011, 07:38:15 AM

Nice to see some asm here.

I've overlooked some code and maybe there's some little improvement possible,
for example to exchange opcodes like "cmp" with "test",
'cause "test" only sets the flags and is faster in execution than "cmp".
If it's not, i apologize for my comment.

cul8'er.

Could you copy the block(s) of code that you're talking about so we can see a little easier if what you're talking about is possible?
If so, there's an increased possibility of macro-fusion for CPU optimization.

ufasoft

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Activity: 404

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Quote from: Sawzall on July 07, 2011, 12:58:26 PM

I've been trying to compile the source using VS2010 with no luck so far.

We provide full source code for VS2010 with CPU and GPU support for 100 BTC.

Sawzall

full member

Activity: 140

Merit: 100

Quote from: igorsol on May 23, 2011, 09:31:14 AM

Quote from: ufasoft on May 21, 2011, 03:38:18 AM

Quote from: igorsol on May 20, 2011, 04:14:06 AM

Dear ufasoft,
(SetThreadPriority(THREAD_PRIORITY_IDLE)).
Current version works nice but if I try to use other applications when bitcoin-miner.exe is working then windows freezes for several seconds every minute. This is a big headache for me.
Thank you.

Now CPU threads work on THREAD_PRIORITY_LOWEST. And they don't freeze other applications. But windows freeze because the miner uses GPU, and Thread Priority has no effect on GPU.

I forgot to mention that i use CPU-only mining because my GPU is Radeon 3650 which has no OpenCL support. I understand that thread priority has no effect on GPU. Should i try to use -g no switch with my Radeon 3650?
On the other hand before bitcoin mining i used GIMPS Prime95 client and my system never freezed with it.
I checked base worker thread priority of prime95.exe and bitcoin-miner.exe using sysinternals process explorer. For prime95.exe base thread priority is 1 (i believe this is THREAD_PRIORITY_IDLE). For bitcoin-miner.exe base thread priority is 6 and this leads to user interface responsibility problems.
I would like to change thread priority by myself using your source code. For this it would be nice if you give us some info about compililing windows executable from your sources (what compiler are you using, what prerequisites required, etc).

I've been trying to compile the source using VS2010 with no luck so far.

compro01

hero member

Activity: 590

Merit: 500

Quote from: skottiejay on July 07, 2011, 10:39:55 AM

Is this the best miner for people who can only CPU mine?

certainly for people with intel processors.

for AMD, the 4way RPC miner may be a little better.

skottiejay

full member

Activity: 140

Merit: 110

bitcoinnaire

Is this the best miner for people who can only CPU mine?

os2sam

legendary

Activity: 3583

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Think for yourself

Quote from: ufasoft on July 05, 2011, 02:22:48 PM

Version 0.16 with BFI_INT uploaded.

I just downloaded .16.

With .13 and .14 I got a peak of 5.65 MH/s on my Intel(R) Core(TM)2 Duo CPU T8300 @ 2.40GHz. With .16 I peak a 5.74 Mhash/s.

Still won't work with my Radeon HD 4670 though.

Thanks for the update.
Sam

theowalpott

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Will you be releasing the source?

ufasoft

sr. member

Activity: 404

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Version 0.16 with BFI_INT uploaded.

ufasoft

sr. member

Activity: 404

Merit: 251

Quote from: yetis on July 05, 2011, 11:24:01 AM

(I have a question about compiling. Do you use an IDE like RADASM? And how to setup JWASM?
I want to compile the source for myself for testing purposes, but it's a little bit complicated, cpp + libraries, etc.
Do i need the vctoolkit?
Please PM. Thank you.)

The project developed under VS2010.
I use JWASM under linux because it is compatible with MASM.
JWASM for linux is singe executable file, just download it.

yetis

member

Activity: 112

Merit: 10

Anyway. I've looked into a book called "assembly compact" and the cycles are the same.
(Work on the loops...)

Tested the new miner on four different cpus (older 2cores and latest i7-4core) and the speed looked the same in the first ten seconds. Then the speed went up about 5%.
Great work!

(I have a question about compiling. Do you use an IDE like RADASM? And how to setup JWASM?
I want to compile the source for myself for testing purposes, but it's a little bit complicated, cpp + libraries, etc.
Do i need the vctoolkit?
Please PM. Thank you.)

ufasoft

sr. member

Activity: 404

Merit: 251

Quote from: pennytrader on July 05, 2011, 10:01:37 AM

what's the difference of the new version?

1. One small optimization for CPU
2. modified for better performance on GPU (especially HD5870).

Next build will have BFI_INT optimization for GPU.

pennytrader

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Activity: 254

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what's the difference of the new version?

yetis

member

Activity: 112

Merit: 10

Quote from: ufasoft on July 05, 2011, 08:18:12 AM

Quote from: yetis on July 05, 2011, 07:38:15 AM

'cause "test" only sets the flags and is faster in execution than "cmp".

1. CMP only sets Flags.
2. TEST is analog of AND for flags.

1. "cmp" matches the first operand with the second one and fixes the flags accordingly.
Internally the first operand is subtracted from the second operand. (This is why test is faster?!?)
The first operand can be a memvariable or a register. The second operand can be a constant additionally. Both operands have to be equal, unless the second is an 8-bit constant. Also it is to regard that at least one operand is a register.

2. "test" executes a logical AND-conjunction and doesn't save the output, instead it only sets the flags. Both operands must be equal.

Maybe i am wrong, but that's what i've learned.

ufasoft

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Activity: 404

Merit: 251

Quote from: yetis on July 05, 2011, 07:38:15 AM

'cause "test" only sets the flags and is faster in execution than "cmp".

1. CMP only sets Flags.
2. TEST is analog of AND for flags.

yetis

member

Activity: 112

Merit: 10

Nice to see some asm here.

I've overlooked some code and maybe there's some little improvement possible,
for example to exchange opcodes like "cmp" with "test",
'cause "test" only sets the flags and is faster in execution than "cmp".
If it's not, i apologize for my comment.

cul8'er.

Eri

sr. member

Activity: 264

Merit: 250

Quote from: d3m0n1q_733rz on July 05, 2011, 03:55:41 AM

Random question: Is there ever going to be a readme or a --help option implemented to show the available options to set in Ufasoft Miner? It would be nice to have some way of remembering the options after I use another miner with its own. Please add a --help or readme?

if you run the exe in cmd prompt it loads up all the help text and doesn't instant close

, after which you can set it to run. for me i just made a shortcut and added the info i use to the target field in properties, double click the shortcut and auto starts it :3

d3m0n1q_733rz

sr. member

Activity: 378

Merit: 250

Random question: Is there ever going to be a readme or a --help option implemented to show the available options to set in Ufasoft Miner? It would be nice to have some way of remembering the options after I use another miner with its own. Please add a --help or readme?

os2sam

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Think for yourself

Does this miner support the Radeon HD 4670? I haven't gotten it to work yet. I there a listing of GPU's that it will support/work with.
Thanks,
Sam

os2sam

legendary

Activity: 3583

Merit: 1094

Think for yourself

Quote from: Naven on July 03, 2011, 03:57:51 AM

Why u wouldn't release lastest 0.14 source?

Was there a post saying .14 was released? I didn't see one.

Thanks for the comment so that I now know.

What are the differences between .13 and .14?
Thanks,
Sam

Naven

newbie

Activity: 22

Merit: 0

Why u wouldn't release lastest 0.14 source?

Topic: Ufasoft Miner - Windows/Linux, x86/x64, SSE2/OpenCL, Open Source - page 36. (Read 631037 times)