Happy Thanksgiving!

Hi, yes.  I start bfgminer with --scrypt when doing LTC mining.  I'm using MinerGate's GUI and CLI miners on my laptop with consistent results - about 60 H/s average (40 - 80 range, sometimes much higher, around 120 H/s, but for short periods of time usually).  The numbers on the server are way off (on cpuminer), and I cannot explain why bfgminer isn't submitting any work...

Would any additional information help?  Debug logs or anything else?  Thanks for all your help!

Thanks!  I was hoping to get some benchmark information to help me assess cpuminer's and others' relative performance on this server.  cpuminer is doing 0.5 H/s per CPU, barely 4H/s on an 8-way 2.6GHz  (admitedly, ancient 32-bit XEONs but, still, more CPU than a modern era calculator...oh, wait, the smartphone replaced the calculator...forgot...)

So, the basic question is why would cpuminer be able to get 0.5 H/s per CPU for LTC mining while bfgminer can't even submit a single hash?  Meanwhile, I get 40H/s on my 1.6GHz laptop...  Something is not adding up here...

Thanks for the pointers!  So, I made it some of the newbie compile issues...progress...and appear to be in the running phase.  This is my runtime output:

 [2015-11-25 14:32:08]
Summary of runtime statistics:

 [2015-11-25 14:32:08] Started at [2015-11-25 08:02:32]
 [2015-11-25 14:32:08] Pool: stratum+tcp://ltc.pool.minergate.com:3336
 [2015-11-25 14:32:08] CPU hasher algorithm used: sse2_32
 [2015-11-25 14:32:08] Runtime: 6 hrs : 29 mins : 36 secs
 [2015-11-25 14:32:08] Average hashrate: 0.0 Megahash/s
 [2015-11-25 14:32:08] Solved blocks: 0
 [2015-11-25 14:32:08] Best share difficulty: 0
 [2015-11-25 14:32:08] Share submissions: 0
 [2015-11-25 14:32:08] Accepted shares: 0
 [2015-11-25 14:32:08] Rejected shares: 0 + 0 stale (-nan%)
 [2015-11-25 14:32:08] Accepted difficulty shares: 0
 [2015-11-25 14:32:08] Rejected difficulty shares: 0
 [2015-11-25 14:32:08] Hardware errors: 0
 [2015-11-25 14:32:08] Network transfer: 205.1 / 116.1 kB  (  8.8 /   5.0  B/s)
 [2015-11-25 14:32:08] Efficiency (accepted shares * difficulty / 2 KB): 0.00
 [2015-11-25 14:32:08] Utility (accepted shares / min): 0.00/min

 [2015-11-25 14:32:08] Unable to get work from server occasions: 194
 [2015-11-25 14:32:08] Work items generated locally: 5257
 [2015-11-25 14:32:08] Submitting work remotely delay occasions: 0
 [2015-11-25 14:32:08] New blocks detected on network: 93

 [2015-11-25 14:32:08] Summary of per device statistics:

 [2015-11-25 14:32:08] CPU0        | 20s:217.9 avg:218.6 u:  0.0  h/s | A:0 R:0+           0(none) HW:0/none
 [2015-11-25 14:32:08] CPU1        | 20s:217.9 avg:218.8 u:  0.0  h/s | A:0 R:0+           0(none) HW:0/none
 [2015-11-25 14:32:08] CPU2        | 20s:217.9 avg:218.6 u:  0.0  h/s | A:0 R:0+           0(none) HW:0/none
 [2015-11-25 14:32:08] CPU3        | 20s:217.0 avg:218.1 u:  0.0  h/s | A:0 R:0+           0(none) HW:0/none
 [2015-11-25 14:32:08] CPU4        | 20s:218.3 avg:219.0 u:  0.0  h/s | A:0 R:0+           0(none) HW:0/none
 [2015-11-25 14:32:08] CPU5        | 20s:217.9 avg:218.9 u:  0.0  h/s | A:0 R:0+           0(none) HW:0/none
 [2015-11-25 14:32:08] CPU6        | 20s:217.9 avg:218.7 u:  0.0  h/s | A:0 R:0+           0(none) HW:0/none
 [2015-11-25 14:32:08] CPU7        | 20s:217.8 avg:218.7 u:  0.0  h/s | A:0 R:0+           0(none) HW:0/none
 [2015-11-25 14:32:08]
Shutdown signal received.

There's a connection.  CPUs are detected and used.  There's protocol-level dialog.  The pool sees me connected.  There is no work being submitted...

I can use cpuminer to create work on the same pool(s) that I've tested, and I've tried using bfgminer against multiple pools without success.  So, I don't suspect the pools.

Any suggestions/ideas on what might be going on?  Thanks for the help!!!

As I mentioned, I added the --enable-cpumining to the build_miner.sh script.  After installing yasm I re-compiled bfgminer (without any mods to anything else, hoping it'll just "pick it up").  Was that correct, or do I need to do something else to leverage yasm (never used it before, so unfamiliar)?  The new compiled bfgminer appears to behave just like the old one, so I see no change.  Thanks!

Hi!  Newbie question...

What is the proper way to pass --enable-cpumining to compile bfgminer, and do I need to do anything else to do CPU mining (yes, I know - I'm not 100% newbie)?  I understand that to recompile the included miners in Minera I have to do:

cd /var/www/minera
./build_miner.sh bfgminer

So, my question is where/how to pass the --enable-cpumining option to enable CPU mining in bfgminer (and if there is something else that I need to do).

I went into /var/www/minera/build_miner.sh and added --enable-cpumining to the BFGMINER_CONFIG line (it now looks like this:  BFGMINER_CONFIG="--enable-scrypt --enable-broad-udevrules --enable-cpumining").  That didn't seem to do anything.  This is all that I get:

For LTC (bfgminer --scrypt --cpu-threads 1):

 [2015-11-23 16:22:10] Pool 0 stratum+tcp://ltc.pool.minergate.com:3336 alive
 [2015-11-23 16:22:10] Probing for an alive pool
 [2015-11-23 16:22:10] Pool 0 stratum+tcp://ltc.pool.minergate.com:3336 alive
 [2015-11-23 16:22:10] Network difficulty changed to 42.3k (303.1G)
 [2015-11-23 16:22:10] Stratum from pool 0 detected new block
 [2015-11-23 16:22:11] Pool 0 is hiding block contents from us
 [2015-11-23 16:24:11] Stratum connection to pool 0 interrupted
 [2015-11-23 16:26:12] Stratum connection to pool 0 interrupted
 [2015-11-23 16:28:12] Stratum connection to pool 0 interrupted
 [2015-11-23 16:28:13] Stratum from pool 0 detected new block
 [2015-11-23 16:30:13] Stratum connection to pool 0 interrupted
 [2015-11-23 16:30:14] Stratum from pool 0 detected new block
 [2015-11-23 16:32:14] Stratum connection to pool 0 interrupted

For BTC (bfgminer --cpu-threads 1):

 [2015-11-23 16:29:28] Pool 0 stratum+tcp://btc.pool.minergate.com:3335 alive
 [2015-11-23 16:29:28] Probing for an alive pool
 [2015-11-23 16:29:28] Pool 0 stratum+tcp://btc.pool.minergate.com:3335 alive
 [2015-11-23 16:29:28] Network difficulty changed to 65.8G (471.4P)
 [2015-11-23 16:29:28] Stratum from pool 0 detected new block
 [2015-11-23 16:29:28] Pool 0 is hiding block contents from us
 [2015-11-23 16:31:28] Stratum connection to pool 0 interrupted
 [2015-11-23 16:32:07] Stratum connection to pool 0 interrupted
 [2015-11-23 16:34:39] Stratum from pool 0 detected new block

I get the same results if I go to other pools, so I konw it's not the pool.  And, I can use the system otherwise, so there isn't an obvious network/connectivity problem.

Thanks for all useful/helpful replies, and please do not waste everyone's bandwidth with the obvious "one cannot generate bitcoins with CPU mining."