Lighthouse2 / RTX path tracing benchmark

[jbikker]

An alpha build of the Lighthouse 2 path tracing benchmark is now available:
http://www.cs.uu.nl/docs/vakken/magr/2019-2020/files/Lighthouse2%20RTX%20Benchmark%20vA0.2,feb17.zip
The source code for this package is available from github:
https://github.com/jbikker/lighthouse2
Lighthouse 2 is open source.

[JeGX]

Thanks for the news, I moved the topic in this forum 

[jbikker]

Thank you.
I uploaded a better version; next event estimation greatly improves the image quality.
Video:
https://t.co/EFyjpJT9Ca?amp=1
Executable package:
https://t.co/ukAlREPJqh?amp=1
Source code:
https://t.co/uyke4Uzc2W?amp=1

Updates on twitter, @J_Bikker.

[nuninho1980]

@jbikker

Thank you. How do I increase spp (samples per pixel) from "2" to "32" for non-RTX vA0.3 executabled (extension ".exe")? - Because I get min 30 and max 55 fps running my GTX 980 Ti SC+@VRAM 3505MHz.

[jbikker]

Add a command line parameter, e.g. benchmark.exe 4 will render using 4spp.
Alternatively, get the project from github; at the top of main.cpp in the benchmark project you will find the default spp. This will also let you play with other 'render cores'. For pre-RTX there is the OptixPrime core; for RTX there is the Optix7 core but also the filtered Optix7 core and a Vulkan core. Modifiying and creating cores is what Lighthouse 2 is for.

[nuninho1980]

Add a command line parameter, e.g. benchmark.exe 4 will render using 4spp.

command line (cmd) running Windows 10 x64:

Code Select Expand

C:\Users\ricar\Desktop\Lighthouse2 RTX Benchmark>"benchmarkapp 2spp (NORTX).exe" 32
execute this application with 32 spp but it can't run.

[jbikker]

You need a lot of VRAM for 32spp. What's your card?

[nuninho1980]

You need a lot of VRAM for 32spp. What's your card?

I've said you my videocard. lol

Code Select Expand

C:\Users\ricar\Desktop\Lighthouse2 RTX Benchmark>"benchmarkapp 2spp (NORTX).exe" 2
2 spp as default but I can't run (Window doesn't appear and 100% CPU usage). Too high VRAM doesn't cause that issues. 2 spp uses 1347 MB of VRAM.

[Stefan]

The pre-compiled binary doesn't seem to accept command line parameters.

Edit main.cpp as suggested and rebuild the code
scrspp = 16 uses about 3.5 GB VRAM

After a minute my laptop starts thermal throttling 

[jbikker]

Version B0.5 of the benchmark is now available, which actually makes it a benchmark:

https://twitter.com/j_bikker/status/1230815837784805376

Let me know how your GPU fares, especially if you have an overclocked or otherwise extreme machine.

- Jacco.





(EDIT: reduced image size to reasonable)

[Stefan]

benchmarkapp 2spp (preRTX).exe  fails with Pascal GPU

Code Select Expand

7FF8C3A30000: loaded D:\Downloads\Lighthouse2 RTX Benchmark vB0.5,feb21\coredlls\release\RenderCore_Optix7.dll
7FF887F40000: loaded D:\Downloads\Lighthouse2 RTX Benchmark vB0.5,feb21\nvrtc64_102_0.dll
7FF8F6730000: loaded C:\WINDOWS\SYSTEM32\dbghelp.dll
7FF88BBB0000: loaded C:\WINDOWS\system32\nvcuda.dll
7FF8E7B20000: loaded C:\WINDOWS\SYSTEM32\nvapi64.dll
7FF8F6B10000: loaded C:\WINDOWS\SYSTEM32\dxgi.dll
7FF880550000: loaded C:\WINDOWS\System32\DriverStore\FileRepository\nvami.inf_amd64_ef3e459f58adb6da\nvoptix.dll
7FF87EAF0000: loaded C:\WINDOWS\System32\DriverStore\FileRepository\nvami.inf_amd64_ef3e459f58adb6da\nvrtum64.dll
7FF89E1D0000: loaded C:\WINDOWS\system32\nvfatbinaryLoader.dll
7FF8A3360000: loaded C:\Program Files\NVIDIA Corporation\NVSMI\nvml.dll
7FF8FA8C0000: loaded C:\WINDOWS\System32\psapi.dll
7FF8F870C4C8: unknown exception code C0000409 (exc.code c0000409, tid 21188)
EDIT:

[JeGX]

Here is my score with the new version:

Device: GeForce RTX 2070 (#SM: 36)
Compute capability: 7.5
Device RAM: 8GB
Device RAM: 8GB
Rendercore: RenderCore_Optix7.dll
--------------------------------
samples per pixel:       2
screen size:         1600 x 900
average fps:         91.21
peak fps:            142.27
avg rps (primary): 1747.16M
peak:              2352.70M
avg rps (shadow):  1955.96M
peak:              2815.78M
Checkpoint #0: 0.014
Checkpoint #1: 0.014
Checkpoint #2: 0.195
Checkpoint #3: 0.013
Checkpoint #4: 0.201
Checkpoint #5: 0.177
Average RMSE: 0.102
--------------------------------
#frames recorded:     6699



You should compile the benchmark with /MT option, I don't like installing the VC++ runtimes....
Cool benchmark!

[jbikker]

Thanks. I fixed the issue; asynchronous material sync went wrong. New version:
http://www.cs.uu.nl/docs/vakken/magr/2019-2020/files/Lighthouse2%20RTX%20Benchmark%20vB0.6,feb23.zip

benchmarkapp 2spp (preRTX).exe  fails with Pascal GPU

Code Select Expand

7FF8C3A30000: loaded D:\Downloads\Lighthouse2 RTX Benchmark vB0.5,feb21\coredlls\release\RenderCore_Optix7.dll
7FF887F40000: loaded D:\Downloads\Lighthouse2 RTX Benchmark vB0.5,feb21\nvrtc64_102_0.dll
7FF8F6730000: loaded C:\WINDOWS\SYSTEM32\dbghelp.dll
7FF88BBB0000: loaded C:\WINDOWS\system32\nvcuda.dll
7FF8E7B20000: loaded C:\WINDOWS\SYSTEM32\nvapi64.dll
7FF8F6B10000: loaded C:\WINDOWS\SYSTEM32\dxgi.dll
7FF880550000: loaded C:\WINDOWS\System32\DriverStore\FileRepository\nvami.inf_amd64_ef3e459f58adb6da\nvoptix.dll
7FF87EAF0000: loaded C:\WINDOWS\System32\DriverStore\FileRepository\nvami.inf_amd64_ef3e459f58adb6da\nvrtum64.dll
7FF89E1D0000: loaded C:\WINDOWS\system32\nvfatbinaryLoader.dll
7FF8A3360000: loaded C:\Program Files\NVIDIA Corporation\NVSMI\nvml.dll
7FF8FA8C0000: loaded C:\WINDOWS\System32\psapi.dll
7FF8F870C4C8: unknown exception code C0000409 (exc.code c0000409, tid 21188)
EDIT:

[Stefan]

Benchmark completes now successfully.

CLI reads Optix 5, but results.txt reads OptiX7, even if you delete RenderCore_Optix7.dll from subfolder.
"Device RAM" is listed twice.

Device: GeForce GTX 1060 (#SM: 10)
Compute capability: 6.1
Device RAM: 6GB
Device RAM: 6GB
Rendercore: RenderCore_Optix7.dll
--------------------------------
samples per pixel:       2
screen size:         1600 x 900
average fps:         10.71
peak fps:            20.12
avg rps (primary): 117.92M
peak:              193.32M
avg rps (shadow):  124.61M
peak:              194.26M
Checkpoint #0: 0.201
Checkpoint #1: 0.185
Checkpoint #2: 0.218
Checkpoint #3: 0.193
Checkpoint #4: 0.220
Checkpoint #5: 0.120
Average RMSE: 0.190
--------------------------------
#frames recorded:      789

[nuninho1980]

My result on my EVGA GeForce GTX 980 Ti SC+@VRAM 3505MHz with Gf 441.87 driver running Win 10 x64 1903 and i7-4790K@4.4GHz:

LightHouse v2.0 - vB0.6

[jbikker]

Interesting to see that the 980Ti is so much faster than the more recent 1060.
I'll assemble a little table tomorrow and put it on a proper website.
Thanks for posting your results!

[Stefan]

Interesting to see that the 980Ti is so much faster than the more recent 1060.

Seems to be dependent on the amount of SMs

I noticed another issue:
At result screen GPU clock is stuck at 1809 MHz, which is faster than my boost clock (1671 MHz).
After exiting clock drops as expected.

[jbikker]

Benchmark now has a proper page:
https://jacco.ompf2.com/lighthouse-2-rtx-path-tracing-benchmark/

[jbikker]

The benchmark has been updated. The new version has less noise: in fact, the 10spp version now has a better image than the 24spp in the previous version. Performance also improved; framerate for 10spp is about the same as for 8spp in the previous version. Download:

https://jacco.ompf2.com/lighthouse-2-rtx-path-tracing-benchmark/

Image: close-up of the blue noise sampling pattern used in this demo.

[Stefan]

Result screen shows now correct rendercore for Pascal.
But current clock still exceeds boost clock.