This is when things will get interesting. Ryzen appears to do better with hot and server workloads than gaming.
Should read HPC instead of "hot"
AMD Prepares 32-Core Naples CPUs for 1P and 2P Servers: Coming in Q2
161–169 of 169 posts
Re: AMD Prepares 32-Core Naples CPUs for 1P and 2P Servers: Coming in Q2
#162Earlier quoted context omitted.
Think of it this way, the original Niagara (T1) was an in-order CPU. That is, instructions were executed in the order they occur in the program code. This is simple and power efficient but doesn't produce very good single thread performance, since the processor stalls if an instruction takes longer than expected. Say, a load instruction misses L1 cache and has to fetch the data from L2/L3/Lwhatever/memory. Now, one w…
Doing that now. Thanks for the write-up. So although separated by time but not by clocks (the intel setup has the roughly the same base clocks and the same ram as the t4 setup) the 40 thread Xeon system had roughly double the perf of the 128 thread t4 setup running speccjvm2008 https://www.spec.org/jvm2008/results/jvm2008.html
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Re: AMD Prepares 32-Core Naples CPUs for 1P and 2P Servers: Coming in Q2
#163Earlier quoted context omitted.
Think of it this way, the original Niagara (T1) was an in-order CPU. That is, instructions were executed in the order they occur in the program code. This is simple and power efficient but doesn't produce very good single thread performance, since the processor stalls if an instruction takes longer than expected. Say, a load instruction misses L1 cache and has to fetch the data from L2/L3/Lwhatever/memory. Now, one w…
Doing that now. Thanks for the write-up. So although separated by time but not by clocks (the intel setup has the roughly the same base clocks and the same ram as the t4 setup) the 40 thread Xeon system had roughly double the perf of the 128 thread t4 setup running speccjvm2008 https://www.spec.org/jvm2008/results/jvm2008.html
The T7 and S7 are even faster than the T4, and unfortunately I haven't seen newer results published for them.
Re: AMD Prepares 32-Core Naples CPUs for 1P and 2P Servers: Coming in Q2
#164With how big these chips are getting, I wonder if the next iteration will have an HBM last-level cache on chip.
Here is the newest PDF about something like that: http://www.computermachines.org/joe/publications/pdfs/hpca20...
Re: AMD Prepares 32-Core Naples CPUs for 1P and 2P Servers: Coming in Q2
#165Earlier quoted context omitted.
Short story: because its role as a crypto hash function is sort of obsolete given that it's been proven to be broken, and faster, more secure alternatives exist. But for all practical purposes, SHA1 isn't about to disappear. MD5 has been shown to be broken since forever and people still write new code using it today.
The thing with SHA-1 is that we know (and have known for a decade) that is not a good cryptographic hash function. It is still, along with MD5, a good hash function if you control the input, i.e. in a hash table.
There are better functions than SHA1 to use for hash tables. Candid question: really what is the use for MD5/SHA1 these days?
Re: AMD Prepares 32-Core Naples CPUs for 1P and 2P Servers: Coming in Q2
#166Licensing Windows 2016 Datacenter would cost a fortune for the 2P server.
Re: AMD Prepares 32-Core Naples CPUs for 1P and 2P Servers: Coming in Q2
#167Earlier quoted context omitted.
Wrt. noise: decibels (dB, "perceived loudness") are logarithmic in sound energy, so going from e.g. a single GTX 1080 at 47 dB to 8x GTX 1080 only increases the noise to 56 dB, which is noticeable but not really annoying, and very far from requiring ear protection. Recommendations for office spaces is that noise be kept Wrt. cases: I think a regular E-ATX compatible case should be enough, but it all depends on the mo…
Your noise scale is off. 60dB is restaurant conversation level noise. For comparison, Notebookcheck's system noise scale is 30dB=silent, 40dB=audible, 50dB=loud.
Yup, sorry, my bad. 60 dB is definitely loud enough to be annoying. Still, 8 GPUs are not 8x louder than one, which was the main point.
Re: AMD Prepares 32-Core Naples CPUs for 1P and 2P Servers: Coming in Q2
#168Earlier quoted context omitted.
The thing with SHA-1 is that we know (and have known for a decade) that is not a good cryptographic hash function. It is still, along with MD5, a good hash function if you control the input, i.e. in a hash table.
There are better functions than SHA1 to use for hash tables. Candid question: really what is the use for MD5/SHA1 these days?
Yes, but those are widely implemented and thus available more or less everywhere. I'd rather use a slightly less ideal hash function, than use an untested one.
Re: AMD Prepares 32-Core Naples CPUs for 1P and 2P Servers: Coming in Q2
#169Earlier quoted context omitted.
Your noise scale is off. 60dB is restaurant conversation level noise. For comparison, Notebookcheck's system noise scale is 30dB=silent, 40dB=audible, 50dB=loud.
Yup, sorry, my bad. 60 dB is definitely loud enough to be annoying. Still, 8 GPUs are not 8x louder than one, which was the main point.
That's not the point. 80 dB isn't twice as loud as 40 dB, either, it's much more than that.