I was not able to compile with 19 gpu's, i've got a lot of errors. 16 gpu's version compiled without any troubles.
I htink tpruvot must check this situation.

You need to modify 2 more files...... check here....
https://github.com/tpruvot/ccminer/pull/54It build without any error for me..... But i don't have 19 GPU rig to test....

Please try and let us know.
Thanks, just compiled x32 x64 versions without any troubles.
But haven't tested yet< because i have removed cards from rig.
Ccminer is very unstable with 19 gpu's and die very fast on lyra2z and skein algo, so ccminer is not usable with 19gpu's. I think only tpruvot can find solution(((
Strange thing, but on both algos miner dies on gpu0 but in case when i am using 16 gpu config, there is no troubles with gpu0 on ccminer x64 ver and x32 ver have different gpu troubels. In my situration gpu0 is p104-100
GPU #0: SM 6.1 P104-100 @ 1734 MHz (MEM 5005)
GPU #1: SM 6.1 Gigabyte GTX 1080 Ti @ 1633 MHz (MEM 5505)
GPU #2: SM 6.1 ASUS GTX 1060 3GB @ 1785 MHz (MEM 4004)
GPU #3: SM 6.1 MSI GTX 1080 @ 1823 MHz (MEM 5005)
GPU #4: SM 6.1 ASUS GTX 1060 3GB @ 1785 MHz (MEM 4004)
GPU #5: SM 6.1 P104-100 @ 1734 MHz (MEM 5005)
GPU #6: SM 6.1 ASUS GTX 1060 3GB @ 1785 MHz (MEM 4004)
GPU #7: SM 6.1 MSI GTX 1080 @ 1823 MHz (MEM 5005)
GPU #8: SM 6.1 P104-100 @ 1734 MHz (MEM 5005)
GPU #9: SM 6.1 MSI GTX 1080 @ 1823 MHz (MEM 5005)
GPU #10: SM 6.1 P104-100 @ 1734 MHz (MEM 5005)
GPU #11: SM 6.1 MSI GTX 1080 @ 1823 MHz (MEM 5005)
GPU #12: SM 6.1 P104-100 @ 1734 MHz (MEM 5005)
GPU #13: SM 6.1 Gigabyte GTX 1080 Ti @ 1633 MHz (MEM 5505)
GPU #14: SM 6.1 Gigabyte GTX 1080 Ti @ 1633 MHz (MEM 5505)
GPU #15: SM 6.1 Gigabyte GTX 1080 Ti @ 1633 MHz (MEM 5505)
GPU #16: SM 6.1 MSI GTX 1080 @ 1823 MHz (MEM 5005)
GPU #17: SM 6.1 P104-100 @ 1734 MHz (MEM 5005)
GPU #18: SM 6.1 Gigabyte GTX 1080 Ti @ 1633 MHz (MEM 5505)
Tried zm miner 0.5.8 it is awesome and works well. Tried ewbf cuda miner it is peace of shit.
It sounds to me like your intensities may be completely off.
A huge mix of cards means that they need to be set individually, even though ccminer-tpruvot may try and auto adjust these intensities for each card.
Just a thought, but it is what it seems like.