I guess we have all seen this: https://access.redhat.com/articles/3307751
If not, 'HPC Workloads' (*) such as HPL are 2-5% affected.
However as someone who recently installed a lot of NVMe drives for a fast
filesystem, the 8-19% performance hit on random IO to NVMe drives is not
pleasing.
(*)
Indeed, it was the reverse until recently but P100 is compute
capability 6.0, the latest GTX cards are 6.1 but V100 is already 7.
Performance-wise P100 is reasonably close to commodity cards on the
Tensorflow benchmarks (especially on 1 or 2 cards).
I don't have figures at hand but currently V100 i
Disabling branch prediction - that in itself will have an effect on
performance.
One thing I read about the hardware is that the table which holds the
branch predictions is shared between processes running on the same CPU core.
That is part of the attack process - the malicious process has knowle
I did not want to hijack the thread on Nvidia cards.
Doug Eadline as usual makes a very relevant point:
"BTW, I find it interesting one of the most popular codes run
on Nvidia GPUs is Amber (MD). It has been optimized to use
SP when it can and many Amber users turn off ECC because it
slows down th
Tim, I hear that just before Christmas the Sanger had a wardrobe
installed, filled with fur coats. Also a supply of Turkish Delight.
On 3 January 2018 at 17:17, Tim Cutts wrote:
> I am henceforth renaming my datacentre the “magical informatics cupboard”
>
> Tim
>
> On 03/01/2018, 15:58, "Beowul
