![]() ![]() There are no truly "ab initio" mathematical predictions in chemistry. In theory, not even the computer is needed, as you could do everything with pen and paper, but it might require years or centuries.Ĭhemistry is an experimental science for now, until someone would find a method to solve the equations of quantum mechanics for non-trivial systems.Ī lot of mathematics is used in chemistry but at its base chemistry remains experimental, because all the mathematical models used in chemistry to predict some facts use a large number of model parameters that have been determined experimentally. ![]() To discover anything in mathematics, including a new video compression algorithm, you do not need anything else, except a computer. Still running tests, but it looks like good hardware accelerated encoding in HEVC can be had for $150 - along with PD18 anyway.There are essential differences between chemistry and mathematics. That's good enough for men then, I guess. I'm more a still photographer, and something of a pixel peeper, and I've done several CPU/software to GPU/hardware encoded 4k tests and I can't really spot much difference. I've read that the quality on hardware-encoded video is supposed to be worse. So, more than 60x faster? That's a major improvement for me and makes it much easier and more fun for me to get the rest of my video work done. As I'm typing this, it's finishing up, in less than 7 minuts. With this cheap graphics card, it's encoding at a speed of about 1.2 seconds of video per second of elapsed encoding time. ![]() Using PD14 and CPU encoding, that video took about 8 hours to encode. It's doing hardware encoding of a little 10 minute 4k, 60fps trail run video I did the other day. ![]() The card's 1/3 the size of the older AMD, doesn't need extra power, is quieter, and although PD 14 won't recognize it for use even with h.264 (maybe I need to reinstall or something to get it to reconfigure the graphics?), PD 18 works great with it so far. That's turing architecture but with the Volta-level NVENC, I guess. I grabbed an inexpensive Gigabyte card with the GTX 1650 and 4 gigs of memory. Manufacturer: Advanced Micro Devices, Inc.Ĭhip type: AMD Radeon Graphics Processor (0圆939)ĭevice Key: Enum\PCI\VEN_1002&DEV_6939&SUBSYS_22B61458&REV_F1ĭevice Status: 0180200A Page File: 9294MB used, 24446MB available System Manufacturer: Gigabyte Technology Co., Ltd. I'm now wondering if the entire problem can't be solved with a GPU that would hardware encode HEVC in PD14 as well as 18 (and I'll just get a refund on 18 since there's not much else for me there.) Unfortunately, my attempts to get help on this topic from CL support haven't worked - they just keep pointing me to an out-of-date "how to enable hardware acceleration" page in the FAQ. When I go to produce in h.265, none of the fast rendering options are clickable. As it stands, PD18 does not use the HEVC encoder in my skylake CPU. I'm trying PD 18 to see if I get better speed and results, and I'm willing to upgrade from that AMD R9 to something a bit newer, so I'm looking for cards in the couple-hundred-bucks range that are known to work with HEVC encoding, so I can save myself some time and disc space. My AMD R9 380 doesn't, apparently, support HEVC hardware encoding, but my Skylake GPU does, however PD 14 has never seemed to use it.) (I'm on PD 14 right now, and I can only use hardware accelerated encoding on h.264 / AVC. The HEVC takes about 2/3 the space, but takes about 6x as long to produce. I'm hoping to do this since, for my purposes, a 4k HEVC at 37Mbps is as good as a 4k AVC at 50 Mbps. I'm wondering if anyone out there is running PD18 and using hardware accelerated encoding for HEVC / h.265 production. ![]()
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