On Mon, Aug 12, 2019 at 2:12 AM D. Hugh Redelmeier via talk <talk@gtalug.org> wrote:
| From: Alex Volkov via talk <talk@gtalug.org>
| The other system I have is from 4 years ago, based on AM3+ platform, so it's | only has PCI v2 (there's a mention of PCI v3 requirements in ROCm | documentation), probably no exposed CRAT tables, and sketchy IOMMU support. | Just installing the card into it would likely not work, and upgrading the | system to something that will support ROCm stack properly would cost more then | $500, whereas just getting gtx off kijiji would be less than $200.
I just assumed that my Haswell systems have PCIe v3.0, but I don't actually know.
<https://rocm.github.io/ROCmPCIeFeatures.html>
Googling for a way of testing for PCIe v3 from the linux command line isn't too rewarding. In the output of "lspci -vv" I see 8GT/s so I think that I have PCIe 3.0.
LnkCap: Port #2, Speed 8GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <256ns, L1 <8us
According to https://en.wikipedia.org/wiki/PCI_Express 1.0: 2.6 GT/s 2.0: 5.0 GT/s 3.0: 8.0 GT/s 4.0: 16.0 GT/s --- Post to this mailing list talk@gtalug.org Unsubscribe from this mailing list https://gtalug.org/mailman/listinfo/talk
For reference yes thats correct Hugh. If you look through the Intel Assembly Manual it probably mentions it there . Through I don't think that Haswell has the SHA512 extension in hardware. Not sure when that was added but I believe it was in a later version. Nick