dear Magma creators/developers
I'd like to ask it you maybe have your favourite or recommended GPU(s)?
Or maybe you have conducted some benchmarks?
Reason I wonder is that I have here a GTX580-3GB and a GT640-2GB, the former is supposedly faster according to what one can gather form Internet sources but when I ran some Magma tests, eg.:
./testing_sgemm -l --ngpu 1 --dev 0 --nthread 7 (swapping devices)
I see only marginal differences between the two GPUs (given my tests were correct)
is this normal & expected?
it would be great to have something like recommended hardware spec, or guidance on how to select GPU so we all would know we don't waste money.
many thanks & regards