Robert Sala
Forum Replies Created
-
https://www.thetechgets.com/2013/06/macstadium-announces-plans-for-mac-pro.html
Prefer the wine-rack model…
-
We have a Supermicro 7047 to run DaVinci Resolve.
(2x 6core, 192GB RAM, Quadro K5000 + 4x GTXTitan in Cubix).
Awaiting our 12-core, 64GB, 2xD700 MacPro. It will be interesting to see comparison of standard candle test on both. -
It would be also interesting how the new MacPros work in parallel with IP over TB (Qmaster?). Three TB2 bandwidths equal to one InfiniBand 57Gbit link. That could be an interesting way of building render farms…
-
10 bit in distribution is an overkill. Very few people if any can see the difference between 10 bit and 8 bit with 14 bit LUT. The tests to break up 8bit with banding are purpose made with this one goal in mind. Might as well watch tests to break up ProRes or DCI or H264/5. 10 bit at data manipulation level-yes.
-
now a separate bin with the new 5.0.45 driver appeared
-
The new CUDA drivers are up on nvidia.com.
Go there and see ver 5.0.37 as the latest from November, however when you click it, 5.0.45 from today reveals. Strangely the package does not cover the imac gtx680mx gpu (or any from 5xx or 6xx series actually, no quadro k5000 either). But when downloaded and installed the warning message “update CUDA” disappears and the nvidiaCUDA panel from preferences shows the current version 5.0.45
THE GPU drivers stays the same 8.10.44 304.10.65f03
How is the 6xx series handled then?? By some apple drivers included in the 10.8.3 update? But the imac with 680mx was release with 10.8.2.
What gives?
And what about the Quadro k5000? -
For quadHD DPX you need ca 700Mbyte/sec. With very fast disks and best controller it is perhaps doable with 8 disks in Raid 5. Our Sonnet Dx800 with 8x2TB* does just that when empty, but borderline. For sustained performance in 4k you need specs better by 20-30%. Two Sonnets in raid5 we tested doing ca 1300Mbyte/sec.
*Atto express SAS r680 controller, Seagate enterprise 2TB disks sata/600, 7200rpm, 64MB
-
Thunderbolt needs chipsets for the motherboard, xeons are still waiting for them. Even so, TB will not deliver the cutting edge solutions for the next generation Macpro or PC. If Avatar 2 was to be postproduced on a Mac/PC, the needed bandwidth for uncompressed files will be 4-5Gbyte/sec, or 30-40Gbit/sec (4k/3D/60fps). TB is only 10Gbit sec /channel now.*
The only solution remains PCI, for storage and GUI/GPU/MIC coprocessors– to make the job a real-time (or near RT) experience.
*next gen TB will double that in 2014, still short. -
First reports on the Titan (anandtech, tomshardware) say that it is faster than 680 (by ca 50%) and slightly slower than 690. If you are on Mac and the GPU limit is three (not counting GUI) it is probably better to have 1xGUI + 3x Titan (equal to 4.5 x 680) than 2×690 which works out to 1xGUI and 3x 680. In other words:
1x GUI + 3 titans give you 50% more power than either max configuration with 680 or 690.
Also 6GB VRAM is way better for resolutions >2K than 4GB from 680, not mentioning the 2x2GB on the the 690.
NDA from Nvidia goes off thursday and more detailed reports will be released. -
The sensible move on Macpro would be to cede the line to outside suppliers. Eg. Supermicro 7047 has 4 double 16x pci3 slots + 3 single slots, 8 disk bays, 3 5.25 bays, 1600W power supply, extra cooling etc etc. Just let this machine run OSX and everybody would be happy.
