Add PCI-E bus number in --ndevs listing

[tedkuban]

Big thanks for continuing GPU support in cgminer. Can You add any additional info in --ndevs listing for more accurate identyfying installed cards, for example - bus number and/or real PCI-E slot speed/version (x1,x4,x8,x16 and 2.0-3.0)? I have troubles finding the GPU core with two HD 7990 installed.

[Kalroth]

That information is not available through AMDs driver, I'd have to parse the PCI ports directly to retrieve it. But adding PCI access to cgminer isn't a minor thing, so it's not something that's on the table at the moment, sorry.

[Thirtybird]

If you have physical access to the machine, put your finger on a fan to slow it down, you'll see the RPM change in cgminer.

[tedkuban]

I can't use fan slowdown method - my cards has waterblocks installed. Besides CGWatcher can show bus number from ADL, I think that cgminer use ADL. And my problem consists that the miner shows frequency in order (card-kernel) 0-0, 1-0, 0-1, 1-1, and productivity (Kh) as 0-0, 0-1, 1-0, 1-1. gpu-map don't solve this.

[Kalroth]

You can just disable one GPU in cgminer and then find the cold water block.

I agree, it's not the optimal situation, but some reason AMD likes to throw all cards into the same "7900 series" or "290 series" bucket, and that's the only identifier ADL gives you.

[tedkuban]

I have a 2-core cards, I can find a card but I cannot find one core in a card. I can identify a core with BIOS from ADL (Master-Slave) but I cannot point them to miner GPU number. :-(