Trongersoll
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May 03, 2013, 05:21:22 PM |
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just what is "intensity"?
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dbabo
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May 03, 2013, 06:31:43 PM |
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Gents, mind to decrypt the following please: 05/03/13 18:27:42 CTxMemPool::accept() : accepted 46d7990963 (poolsz 37) 05/03/13 18:28:00 SetBestChain: new best=69f963d82d358c88ee3d height=346030 work=44021880709632917 05/03/13 18:28:00 ProcessBlock: ACCEPTED 05/03/13 18:28:00 force request: block 69f963d82d358c88ee3d 05/03/13 18:28:00 force request: block 69f963d82d358c88ee3d 05/03/13 18:28:00 force request: block 69f963d82d358c88ee3d 05/03/13 18:28:00 CreateNewBlock(): total size 1710 05/03/13 18:28:00 force request: block 69f963d82d358c88ee3d 05/03/13 18:28:00 Rate limit dFreeCount: 13052.3 => 13278.3 05/03/13 18:28:00 CTxMemPool::accept() : accepted f37e279f9c (poolsz 22) 05/03/13 18:28:00 getblocks -1 to 00000000000000000000 limit 500 05/03/13 18:28:00 getblocks -1 to 00000000000000000000 limit 500 05/03/13 18:28:00 getblocks -1 to 00000000000000000000 limit 500 05/03/13 18:28:01 Flushing wallet.dat 05/03/13 18:28:01 Flushed wallet.dat 30ms 05/03/13 18:28:07 getblocks -1 to 00000000000000000000 limit 500 05/03/13 18:28:12 ERROR: FetchInputs() : 0f3a6ab0fb mempool Tx prev not found 0dfc0db223 05/03/13 18:28:12 stored orphan tx 0f3a6ab0fb (mapsz 38)
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netvope
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May 03, 2013, 07:53:35 PM Last edit: May 03, 2013, 08:05:09 PM by netvope |
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Question: Is it a good practice to use "--scan-time 1" in cgminer? I'm trying to solo-mine FTC (scrypt, 2.5 min/block) with GPUs. From what I can found, the usual recommended practice is to add stratum or longpoll pools to the list of pools, so cgminer will know when there is a new block. However, from my own experiment, I found that existing FTC pools are slow to send out new block notifications. The following is a screenshot of cgminer running on 2 different machines. https://i.imgur.com/AphbAkv.pngMachine on the left: pools = [feathercoind, (stratum) feathercoin.is-a-geek.com, (longpoll) featherpool.com] scan-time = 60 Machine on the right: pools = [feathercoind] scan-time = 1 Using "--scan-time 1" with a local feathercoind gives me new blocks detections 0-30 seconds faster than the stratum/longpoll connections (as seen above). However, the statistics for the machine on the right show 60 new blocks (NB), 177 discarded work items (DW), and 1 rejected block (R). Having "DW > NB" and "R > 0" makes me feel that it might I may be doing something wrong. Naively I think that cgminer discards work only when a new block forces it to do so. If anyone knows whether it's OK to use "--scan-time 1", and whether it's fine to have "DW > NB" and "R > 0", please let me know. Thanks!
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ZeikHunter
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May 03, 2013, 09:22:09 PM |
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updated to catalyst 13.4 from 13.1 last night. now cgminer (301 and 310) hangs on start. i get as far as this: [2013-05-03 16:18:35] Started cgminer 3.0.1 [2013-05-03 16:18:35] Loaded configuration file cgminer.conf [2013-05-03 16:18:36] Probing for an alive pool [2013-05-03 16:18:37] Disabling extra threads due to dynamic mode. [2013-05-03 16:18:37] Tune dynamic intensity with --gpu-dyninterval [2013-05-03 16:18:37] Network diff set to 10.1M [2013-05-03 16:18:38] Thread 1 being disabled and it just sits there indefinitely. tried a few different .conf settings, and get ther same. without a .conf and specifying url and such, it crashes a few seconds after hitting return after entering password. any ideas?
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FiatKiller
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May 03, 2013, 10:12:17 PM |
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Con, can you address the best way to determine settings for scantime & expiry when mining the latest scrypt coins? Do you lower them to try to equal the block frequency? Like chinacoins were every second and mincoins are every minute, so it seems like leaving at default is a bad idea...
thnx
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-ck (OP)
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May 03, 2013, 10:19:50 PM |
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Con, can you address the best way to determine settings for scantime & expiry when mining the latest scrypt coins? Do you lower them to try to equal the block frequency? Like chinacoins were every second and mincoins are every minute, so it seems like leaving at default is a bad idea...
That's like going back to how we mined bitcoins >2 years ago before pools and longpoll. The answer is set the scantime as low as you can before the hashrate drops. If you're solo mining, something like 5s is usual for sha coins. However it can be slow to return results for scrypt so you'll have to experiment.
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Developer/maintainer for cgminer, ckpool/ckproxy, and the -ck kernel 2% Fee Solo mining at solo.ckpool.org -ck
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FiatKiller
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May 03, 2013, 10:34:41 PM |
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Ok, thanks. Trying 45 seconds overnight for mincoins...
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os2sam
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Think for yourself
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May 04, 2013, 12:29:46 AM |
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just what is "intensity"?
Did you see this? --intensity|-I <arg> Intensity of GPU scanning (d or -10 -> 10, default: d to maintain desktop interactivity)
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A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail?
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Trongersoll
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May 04, 2013, 01:38:02 AM |
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just what is "intensity"?
Did you see this? --intensity|-I <arg> Intensity of GPU scanning (d or -10 -> 10, default: d to maintain desktop interactivity) and what does that mean? how does it affect miner output?
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ZeikHunter
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May 04, 2013, 02:18:57 AM |
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just what is "intensity"?
Did you see this? --intensity|-I <arg> Intensity of GPU scanning (d or -10 -> 10, default: d to maintain desktop interactivity) and what does that mean? how does it affect miner output? Its like priority in the windows task manager, it sets how important the hashing is to the GPU. 'd' setting is good for computers being used while mining, while most dedicated mining cards see performance benefits in the 9-15 intensity range, from what I've seen.
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kano
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Linux since 1997 RedHat 4
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May 04, 2013, 02:52:47 AM |
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just what is "intensity"?
Did you see this? --intensity|-I <arg> Intensity of GPU scanning (d or -10 -> 10, default: d to maintain desktop interactivity) and what does that mean? how does it affect miner output? GPU-README (yeah another of the files people don't read) INTENSITY INFORMATION:
Intensity correlates with the size of work being submitted at any one time to a GPU. The higher the number the larger the size of work. Generally speaking finding an optimal value rather than the highest value is the correct approach as hash rate rises up to a point with higher intensities but above that, the device may be very slow to return responses, or produce errors.
NOTE: Running BTC intensities above 9 with current hardware is likely to only diminish return performance even if the hash rate might appear better. A good starting baseline intensity to try on dedicated miners is 9. 11 is the upper limit for intensity while BTC mining, if the GPU_USE_SYNC_OBJECTS variable is set (see FAQ). The upper limit for sha256 mining is 14 and 20 for scrypt.
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Tia
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May 04, 2013, 03:21:31 AM |
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Any bright types out here seen something like this before? Is there anything actionable I should take aware from this:
[2013-05-03 22:03:47] New block: 0124e5430a473503... diff 10.1M [2013-05-03 22:03:47] JSON-RPC decode failed: [ 20, "_stratum_mining_subscribe() takes exactly 1 positional argument (3 given)", "Traceback (most recent call last):\n File \"/home/bitcoinpool/eloipool/stratumserver.py\", line 91, in found_terminator\n rv = getattr(self, funcname)(*rpc['params'])\nTypeError: _stratum_mining_subscribe() takes exactly 1 positional argument (3 given)\n" ] [2013-05-03 22:03:48] Stratum authorisation success for pool 2
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LameCooter
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May 04, 2013, 04:39:11 AM |
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Well I tried to search for this but came up empty. Currently solo farming for feathercoin when I see this: Rejected 000001f9 Diff 8.49M/5432796 BLOCK! GPU 1 pool 0 What does this mean? I solved for higher than the current diff. Did some one else beat me to the punch? If blocks come in quickly on your altchain, and you were mining solo on your *coind then it doesn't have a way of telling you blocks have changed (like longpoll or stratum), so you risk mining on old blocks and increasing rejects. Lots of ways to improve this, someone else might have time to tell you. Thanks for the reply. I wondered if it was something like that. Must've been bad luck because I actually put in a second pool to get the longpoll... must've missed it by that much... Thanks for the great app
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ZeikHunter
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May 04, 2013, 08:26:15 AM |
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updated to catalyst 13.4 from 13.1 last night. now cgminer (301 and 310) hangs on start. i get as far as this: [2013-05-03 16:18:35] Started cgminer 3.0.1 [2013-05-03 16:18:35] Loaded configuration file cgminer.conf [2013-05-03 16:18:36] Probing for an alive pool [2013-05-03 16:18:37] Disabling extra threads due to dynamic mode. [2013-05-03 16:18:37] Tune dynamic intensity with --gpu-dyninterval [2013-05-03 16:18:37] Network diff set to 10.1M [2013-05-03 16:18:38] Thread 1 being disabled and it just sits there indefinitely. tried a few different .conf settings, and get ther same. without a .conf and specifying url and such, it crashes a few seconds after hitting return after entering password. any ideas? nobody? I'm to the point where im mining with guiminer, seeing ~150Mhs slower than i should be ![Sad](https://bitcointalk.org/Smileys/default/sad.gif)
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kano
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May 04, 2013, 08:30:05 AM |
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updated to catalyst 13.4 from 13.1 last night. now cgminer (301 and 310) hangs on start. i get as far as this: [2013-05-03 16:18:35] Started cgminer 3.0.1 [2013-05-03 16:18:35] Loaded configuration file cgminer.conf [2013-05-03 16:18:36] Probing for an alive pool [2013-05-03 16:18:37] Disabling extra threads due to dynamic mode. [2013-05-03 16:18:37] Tune dynamic intensity with --gpu-dyninterval [2013-05-03 16:18:37] Network diff set to 10.1M [2013-05-03 16:18:38] Thread 1 being disabled and it just sits there indefinitely. tried a few different .conf settings, and get ther same. without a .conf and specifying url and such, it crashes a few seconds after hitting return after entering password. any ideas? nobody? I'm to the point where im mining with guiminer, seeing ~150Mhs slower than i should be ![Sad](https://bitcointalk.org/Smileys/default/sad.gif) Read your first line ... that a hint? Downgrade.
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ZeikHunter
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May 04, 2013, 09:11:01 AM |
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updated to catalyst 13.4 from 13.1 last night. now cgminer (301 and 310) hangs on start. i get as far as this: [2013-05-03 16:18:35] Started cgminer 3.0.1 [2013-05-03 16:18:35] Loaded configuration file cgminer.conf [2013-05-03 16:18:36] Probing for an alive pool [2013-05-03 16:18:37] Disabling extra threads due to dynamic mode. [2013-05-03 16:18:37] Tune dynamic intensity with --gpu-dyninterval [2013-05-03 16:18:37] Network diff set to 10.1M [2013-05-03 16:18:38] Thread 1 being disabled and it just sits there indefinitely. tried a few different .conf settings, and get ther same. without a .conf and specifying url and such, it crashes a few seconds after hitting return after entering password. any ideas? nobody? I'm to the point where im mining with guiminer, seeing ~150Mhs slower than i should be ![Sad](https://bitcointalk.org/Smileys/default/sad.gif) Read your first line ... that a hint? Downgrade. Yeah, I was hoping for an actual solution rather than just reverting and ignoring the problem.
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-ck (OP)
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Ruu \o/
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May 04, 2013, 09:12:51 AM |
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If the driver is broken for mining, what do you expect cgminer to do about it?
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Developer/maintainer for cgminer, ckpool/ckproxy, and the -ck kernel 2% Fee Solo mining at solo.ckpool.org -ck
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ZeikHunter
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May 04, 2013, 09:23:44 AM |
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If the driver is broken for mining, what do you expect cgminer to do about it?
no idea, its why I asked. Despite what my search said, I couldnt be the first one with the problem. I was genuinely hoping for a workaround or fix I missed.
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