i 21:14:14 main Configured pool firo…
i 21:14:14 Selected pool firo…
i 21:14:14 Stratum mode : Stratum
i 21:14:14 Established connection to firo…
i 21:14:14 Spinning up miners…
cu 21:14:14 cuda-0 Using Pci Id : 01:00.0 NVIDIA GeForce RTX … Memory : 8.00 GB
i 21:14:14 Extranonce set to f3
i 21:14:14 Authorized worker a…
i 21:14:14 Epoch : 685 Difficulty : 4.29 Gh
i 21:14:14 Job: b8ba8d8a… block 891077 firo… cu 21:14:19 cuda-0 Epoch 685 requires 6.95 GB memory. cu 21:14:19 cuda-0 Only 6.95 GB available. Mining suspended on device …
m 21:14:19 0:00 A0 0.00 h - cu0 0.00 0C 0%
m 21:14:24 0:00 A0 0.00 h - cu0 0.00 46C 0%52.650000
Firominer stopped working with GPUs with only 8GB of memory about a week ago. Windows reserves about 1GB of GPU memory for its own use (regardless of whether you are going to use the GPU for Windows displays or not) - this is a long time issue and Microsoft refuses to address the issue. Other miners (T-rex etc) may get a few more epochs of use before they stop working with 8GB GPUs as well because of the way they do memory management. Firominer now requires GPUs with at least 9GB of VRAM to work - meaning that GPUs with 10, 11, 12GB should work fine.
T-rex miner is now starting to fail on some GPUs with only 8GB of vram (8191MB in my case) on some Windows 10 machines (depending on maintenance levels and configuration). This was to be expected since the Firo DAG file size has now grown to 7.26 GB at Epoch 740 and Windows is still reserving vram for its own use. These cards may continue to work a while longer if used on Linux systems.
We will probably slow down or halt the growth of the DAG size. We at least want to continue to support 12 gig cards unless GPUs continue to expand in VRAM size.
A quick reminder that the reason why FiroPoW was designed with a constantly increasing DAG size was to keep off really old hardware that tends to be run by mass mining farms that buy these second hand GPUs cheap and then use it to mine the heck out of coins.
However there’s a balance to be had as people don’t necessarily upgrade their GPUs all the time and I think we generally should definitely support GPUs that have been around in the past 5-8 years at least.