python OpenCL bitcoin miner

[NetTecture]

Some comments and questions

* What happened to options like AGGRESSION etc.? I can not enter them anymore.
* Can we as next step get multi GPU support? So that one can define multiple GPU or just something like -d all and it uses all GPU? Quite a lot of people I think run multi card configs with the same card everywhere, makes everything easier.
* Is there a way to get rid of the new measurement output and put it back to "line by line"? Easier for those starting the miner from a control program that then parses the output Not sure I overlooked that.

Besides that - good thing.

[brunoshady]

Some comments and questions

* What happened to options like AGGRESSION etc.? I can not enter them anymore.
* Can we as next step get multi GPU support? So that one can define multiple GPU or just something like -d all and it uses all GPU? Quite a lot of people I think run multi card configs with the same card everywhere, makes everything easier.
* Is there a way to get rid of the new measurement output and put it back to "line by line"? Easier for those starting the miner from a control program that then parses the output Not sure I overlooked that.

Besides that - good thing.

aggression = frames


and the line by line, try the --verbose mode

[SeW900]

Hey guys, the new Catalyst drivers come with support for OpenCL and AMD APP. So is the installation of the SDK still required, or is it not?

[Luke-Jr]

Latest poclbm mainline breaks with the new difficulty!

Bugfix: http://gitorious.org/~Luke-Jr/bitcoin/luke-jrs-poclbm/commit/7fdc508a1070f5540046f2d7649eed15503177ad
To merge:

Code:

git fetch https://git.gitorious.org/~Luke-Jr/bitcoin/luke-jrs-poclbm.git bugfix_difficulty_error && git merge FETCH_HEAD

If this saves you time and money, consider dropping me some bitcoin 1AgqndFUg2sDSxW8NbzPyHvUibW6FHqQeA

[OCedHrt]

Does the current git run?

Code:

Traceback (most recent call last):
  File "C:\Users\Michael Hsu\Desktop\m0mchil-poclbm-1b5ec3e\HttpTransport.py", l
ine 45, in loop
    self.queue_work(work)
  File "C:\Users\Michael Hsu\Desktop\m0mchil-poclbm-1b5ec3e\Transport.py", line
122, in queue_work
    self.process(work)
  File "C:\Users\Michael Hsu\Desktop\m0mchil-poclbm-1b5ec3e\Transport.py", line
81, in process
    self.set_difficulty(work.difficulty)
  File "C:\Users\Michael Hsu\Desktop\m0mchil-poclbm-1b5ec3e\Transport.py", line
76, in set_difficulty
    self.true_target = np.array(unpack('IIIIIIII', true_target.decode('hex')), d
type=np.uint32)
  File "c:\Python27\lib\encodings\hex_codec.py", line 42, in hex_decode
    output = binascii.a2b_hex(input)
TypeError: Odd-length string

[Luke-Jr]

Does the current git run?

Try reading the post right above yours?

[nebiki]

It prints newlines on every hash rate update when run in lxterminal (linuxcoin).  

Anyone experience the same?  Know why?

EDIT: was told this is because of the width of the terminal window.  There is some extra whitespace after the hash rate text which wraps around to form blank lines if the the terminal window isn't wide enough.

so how did you fix it? i want a clean command prompt @ windows

[LehmanSister]

Latest poclbm mainline breaks with the new difficulty!

Bugfix: http://gitorious.org/~Luke-Jr/bitcoin/luke-jrs-poclbm/commit/7fdc508a1070f5540046f2d7649eed15503177ad
To merge:

Code:

git fetch https://git.gitorious.org/~Luke-Jr/bitcoin/luke-jrs-poclbm.git bugfix_difficulty_error && git merge FETCH_HEAD

If this saves you time and money, consider dropping me some bitcoin 1AgqndFUg2sDSxW8NbzPyHvUibW6FHqQeA

Once again, Luke Jr. saves the day.

Here's the patch for the actually curious:

Code:

--- a/Transport.py
+++ b/Transport.py
@@ -62,7 +62,7 @@ class Transport(object):

        def set_difficulty(self, difficulty):
                self.difficulty = difficulty
-               bits = '%08x' % (difficulty,)
+               bits = hex(difficulty)
                bits = bits[2:len(bits) - 1]
                bits = ''.join(list(chunks(bits, 2))[::-1])
                true_target = hex(int(bits[2:], 16) * 2 ** (8 * (int(bits[:2], 16) - 3)))

[OCedHrt]

Does the current git run?

Try reading the post right above yours?

Didn't click through

But, shouldn't also:

-        bits = bits[2:len(bits) - 1]

In that case? This is to remove the 0x and L.

[Luke-Jr]

Does the current git run?

Try reading the post right above yours?

Didn't click through

But, shouldn't also:

-        bits = bits[2:len(bits) - 1]

In that case? This is to remove the 0x and L.

Good catch, also sanitized the code immediately following it and repushed...

[bitcoindaddy]

Latest poclbm mainline breaks with the new difficulty!

Bugfix: http://gitorious.org/~Luke-Jr/bitcoin/luke-jrs-poclbm/commit/7fdc508a1070f5540046f2d7649eed15503177ad
To merge:

Code:

git fetch https://git.gitorious.org/~Luke-Jr/bitcoin/luke-jrs-poclbm.git bugfix_difficulty_error && git merge FETCH_HEAD

If this saves you time and money, consider dropping me some bitcoin 1AgqndFUg2sDSxW8NbzPyHvUibW6FHqQeA

Luke-Jr, what is the comand if you are just starting out fresh with your special poclbm and you don't already have it? (I'm no git expert). Does it depend on the normal poclbm (does that need to be installed first)?

[Luke-Jr]

Latest poclbm mainline breaks with the new difficulty!

Bugfix: http://gitorious.org/~Luke-Jr/bitcoin/luke-jrs-poclbm/commit/7fdc508a1070f5540046f2d7649eed15503177ad
To merge:

Code:

git fetch https://git.gitorious.org/~Luke-Jr/bitcoin/luke-jrs-poclbm.git bugfix_difficulty_error && git merge FETCH_HEAD

If this saves you time and money, consider dropping me some bitcoin 1AgqndFUg2sDSxW8NbzPyHvUibW6FHqQeA

Luke-Jr, what is the comand if you are just starting out fresh with your special poclbm and you don't already have it? (I'm no git expert). Does it depend on the normal poclbm (does that need to be installed first)?

Code:

git clone git://github.com/m0mchil/poclbm.git && cd poclbm && git fetch https://git.gitorious.org/~Luke-Jr/bitcoin/luke-jrs-poclbm.git bugfix_difficulty_error && git merge FETCH_HEAD

[ivank2139]

Latest poclbm mainline breaks with the new difficulty!

Bugfix: http://gitorious.org/~Luke-Jr/bitcoin/luke-jrs-poclbm/commit/7fdc508a1070f5540046f2d7649eed15503177ad
To merge:

Code:

git fetch https://git.gitorious.org/~Luke-Jr/bitcoin/luke-jrs-poclbm.git bugfix_difficulty_error && git merge FETCH_HEAD

If this saves you time and money, consider dropping me some bitcoin 1AgqndFUg2sDSxW8NbzPyHvUibW6FHqQeA

This fix worked for me and got me back to mining at full complement.  I sent you some bitcoins.  thanks.

[NickW]

The current version is great, but could we get more significant figures on the stale share percentage please? I know I can easily put in to a calculator myself, but it would be nice to see straight away rather then seeing 0% most of the time .

Keep up the good work though.

[bitcoindaddy]

The newest version already shows percentage out to the thousandth's place. 

pit.deepbit.net:8332 [321.472 MH/s (~305 MH/s)] [Rej: 8/2430 (0.33%)]           

[zubatej]

Switching to backup pools fails because of variable name mismatch. Rename either all occurences of backup_server_index to backup_pool_index or other way around. Can be done by

Code:

sed -i 's/backup_server_index/backup_pool_index/' Transport.py

[Luke-Jr]

Here's a new bugfix: http://tinyurl.com/3qo2j3o
Synopsis: Don't turn off X-Roll-Ntime just because the work submit doesn't include the header.
(it really should associate it to the specific work, but this is good enough)

[BOARBEAR]

Here's a new bugfix: http://tinyurl.com/3qo2j3o
Synopsis: Don't turn off X-Roll-Ntime just because the work submit doesn't include the header.
(it really should associate it to the specific work, but this is good enough)

can you make a mod that works with http://forum.bitcoin.org/index.php?topic=7964.0
it is a faster kernel

[super6]

I'm getting "poclbm.exe has stopped working" errors in guiminer. Will this patch fix it and how do I go about doing that in windows?

[Luke-Jr]

The following branches are stable for merging to mainline:

• bugfix_workspecific_rollntime -- Don't disable rollntime if the header is missing on share submissions (only on new work)
• extensions_header -- Send X-Mining-Extensions and X-Mining-Hashrate headers
• logformat -- Split off log-style printing into a separate --logformat option
• efficiency -- Display work efficiency (accepted shares / works)
• submit_retry -- Retry submitting works after network errors

The above are all merged into my branch named combo.

I also have a extended_timeout branch that people with poor network connectivity can merge to get a more reliable mining experience. This one is not part of combo, and probably not suitable for merging to mainline.

To pull any of the above, run:

Code:

git fetch git://gitorious.org/~Luke-Jr/bitcoin/luke-jrs-poclbm.git PutBranchNameHere && git merge FETCH_HEAD