Solver 0.1: unexpected banner "OpenCL build failed (-11). Build log follows:"

Mining
1

Solution: Use the correct Github repo: GitHub - mbevand/silentarmy: Zcash miner optimized for AMD & Nvidia GPUs

Hey guys, running 16.04 Ubuntu, installed AMD SDK and driver as advised in silentarmy installation instructions, successfully run the make command generating the silentarmy and sa-solver binaries, but then any time I try to run silentarmy (even just the default command without providing pool options) I get the following:

xxxx@xxxx:~/sa-nr$ ./silentarmy
Connecting to us1-zcash.flypool.org:3333
Solver 0.0: unexpected banner ā€œOpenCL build failed (-11). Build log follows:ā€
Solver 0.1: unexpected banner ā€œOpenCL build failed (-11). Build log follows:ā€
Stratum server sent us the first job
Mining on 1 device

And then it just hangs. I let it run for a couple of minutes to see if the CPU would do anything, but never seem to get any solves. This rig was running okay on Windows, just unstable, so I wanted to switch it over to linux. Itā€™s currently 2x RX 470ā€™s. Let me know if anyone else has seen this or has any ideas. Iā€™ve already re-installed from scratch once :frowning:

Edit:

It does pick up my devices:

xxx@xxx:~/sa-nr$ silentarmy --list
Devices on platform ā€œAMD Accelerated Parallel Processingā€:
ID 0: Ellesmere
ID 1: Ellesmere
ID 2: AMD FXā„¢-6300 Six-Core Processor

2

I ran into something like this, and it came down to not having the correct AMD OpenCL drivers. I noticed that running sa-solver gave more informative output than just running silentarmy. Can you run ./sa-solver and post the build log lines?

3

Also, post the output of ./sa-solver --list or ./silentarmy --list so we can make sure it actually recognizes your video card. If the video card doesnā€™t show up as device 0, then youā€™ll need to pass the correct device into the command with the --use= option.

4

Thanks for the quick reply! Hereā€™s that output:

xxx@xxx:~/sa-nr$ ./sa-solver
Solving default all-zero 140-byte header
Building program
OpenCL build failed (-11). Build log follows:
input.cl:537:5: error: use of undeclared identifier ā€˜pā€™
p += xi_offset;
^
input.cl:538:31: error: use of undeclared identifier ā€˜pā€™
for (i = 0; i < cnt; i++, p += 32)
^
input.cl:539:45: error: use of undeclared identifier ā€˜pā€™
first_words[i] = *(__global uchar *)p;
^
3 errors generated.

error: Clang front-end compilation failed!
Frontend phase failed compilation.
Error: Compiling CL to IR

5

Yep, those are good. Should have had those in OP:

xxx@xxx:~/sa-nr$ silentarmy --list
Devices on platform ā€œAMD Accelerated Parallel Processingā€:
ID 0: Ellesmere
ID 1: Ellesmere
ID 2: AMD FXā„¢-6300 Six-Core Processor

6

Well, this is clearly a problem. The Clang compiler is reporting an error. Can you make sure youā€™ve grabbed the correct branch of the code?

1 Like
7

Itā€™s because you are running an unofficial, modified, broken fork of silentarmy (I noticed from your directory name: ā€œsa-nrā€).

Download the official version at: GitHub - mbevand/silentarmy: Zcash miner optimized for AMD & Nvidia GPUs

1 Like
8

Wow, that appears to be working. Idiot I am sometimesā€¦

That works without commands, gunna try running with pool options now.

9

Yup, that did it! Thanks man. BTW, any way to get this to mine at NiceHash? Just tried real quick and it gave me a connection error.

Thanks!

10

Nicehash isnā€™t currently supported. (Actually it works half the time because 1 of their 2 servers fix 5 bytes of the nonce and the other 17 bytes.)

11

Hmm, if itā€™s predictable couldnā€™t that be factored in? I just like the idea of NiceHash because it takes away the need to hold the ZEC at all, and renters pay a premium :stuck_out_tongue:

12

anyone can help meā€¦ i got the same errorā€¦ already do as tutorial on github for install driver but canā€™t get 2 GPU workā€¦

Now ./silentarmy --list not show 2 cards.
quangtuyen@quangtuyen-desktop:~/silentarmy$ lspci -v | grep VGA
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480] (rev c7) (prog-if 00 [VGA controller])
02:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480] (rev c7) (prog-if 00 [VGA controller])
quangtuyen@quangtuyen-desktop:~/silentarmy$ ./silentarmy --list
Devices on platform ā€œAMD Accelerated Parallel Processingā€:
ID 0: Intel(R) Pentium(R) CPU G3440 @ 3.30GHz