Good morning sir, great work on all of this. I'm a hobbyist in doing various scientific simulations in my free time to learn. I had a basic question (i think, haha): it seems you focus on leveraging FP32 and FP16 performance of GPUs (based on the names of the binaries files on your github). Can you explain if you have any plans to try and perform these sims using the FP64 capability of GPUs? I ask this because an old GPU I have ordered has an oddly tremendous FP64 TFLOPS value, even compared to today's highest consumer flagship. I also know FP64 is used in some real applications where precision really matters. It would be great if there is a method to tap into that performance!

hey! very cool software, i'm glad you made it open source, otherwise i'd still be looking for hours on a fast and free cfd software haha i don't know if you still read the comments on this video but in case you still do i have a question: i've been using the software for the past few days and have been messing with the settings here and there, how does the VRAM occupation work? i'm using a laptop rtx 3070 with 8gb vram but everytime i run a simulation and compare simulations run on 100mb vram and 1000mb vram the simulation speed seems to slow down even though my framerate is relatively smooth on both, is it due to the simulation needing more processing power from the GPU and is completely seperate from the framerate? i'm a complete noob on cfd and simulation stuff by the way haha so i'm sorry if i said some dumb things, i came across the software and wanted to see how the aerodynamic of my car models would perform

Hahaha! Came from your comment on Iceberg Tech's Titan Xp video! Glad to see it was put to great use in its time

how we do it with your github code

First of the month

I managed to achieve the same thing.. there are bugs but it's better than black and white

Mooooove out of my way!

Nice OpenCL 1.1, correctly? I would like to understand how do i use getting started with OpenCL. I use on Ubuntu 24.04.1 but it works fine since i tested triangle.

"How much vram do you have?" "yes"

device? (cpu and gpu); resolution??

You need to consider that when thrown by a catapult the position relative to the direction may vary.

Congratulations, your work on this project gets better and better! May I know how soon a nice tutorial on configuration and use will be available?

Dear Moritz. Would it be possible to simulate an aircraft (Re 10^7) with reasonable fidelity in real time on a modern GPU like a RTX4090?

i want to ask about how it compare to 4060, 4060ti 16gb ,3070 .

Woah the jet very aerodynamics

Do you use immersed boundary method or body fitted mesh?

Hallo Moritz, ich versuche mich aktuell auch etwas an Simulationen. Ich rendere meine Daten mit OpenCl Funktionen direkt auf der GPU, habe aber noch keine Lösung gefunden, wie ich mein fertiges uchar Array mit RGB Werten tatsächlich auf den Bildschirm bekomme. Aktuell versuche ich es mit OpenGl, aber das führt bis her nur zu Blackscreens und Neustarts. Du meintest in dem Vortrag 2022, dass du die Bilder an den CPU zurückschickst und dann anzeigst. Dabei stellen sich mir zwei Fragen. Wie zeigst du das Bild dann vom CPU aus an ? Und wäre es nicht schneller das Bild auf dem GPU zu lassen und irgendwie von dort aus anzuzeigen ? Ich meine wenn ich ein Bild anzeigen möchte läuft das doch sowiso über die GPU, oder ? Ich habe schon versucht aus deinem Code schlau zu werden, aber mit meiner begranzten Erfahrung finde ich mich da ehrlich gesagt nicht zurecht. Wäre super, wenn du mir da einen kleinen Tipp geben könntest. Viele Grüße Björn

what a setup lol, your work is very impressive!

How is PyTorch performance for training physics informed neural networks on B580?

How does the code perform on a “normal” computer (Like a $4k xeon workstation, or even a ryzen gamer pc - a computer a undergrad/grad student could afford) compared to the traditional methods? Lets say, a 15-20 million cell model of a car

Is your software only meant to assist rendering? What other function it has?

Do you know how pci express speed affect performance ? Because there's a lot of cheap used crypto mining computers with a lot of GPUs but in 1x.

Cool. Can you run a known model side by side to see similarities? Automotive?

Dr Lehman, maybe im start to planning to make gui for your cfd code

bro calls me broke in 3 different languages, love the sim tho 👍

its so good to not rely entirely on CUDA!!

is that a wheelchair or something

Dr. Lehman, please consider creating an easy to use GUI, or a port to Blender so that those that lack your intelligence can use your gift to the world ! I have tried over and over, but get stumped at a certain point. Happy Christmas !

Would you be able to combine an integrated GPU with a discrete GPU? Amazing to see this, hope you get a few MI300 under your Christmas tree!

Haters will say this isn't what Santa's sleigh looks like

767-400 has larger windows than the 763, close to or equal to 777 size windows Also has a 'glass cockpit' The plane is also 18" taller the 763's And finally the distinctive wingtip, which we see later in the 777

Very nice video I flew MUC EWR on a UA 764 and IAH MUC UA 764 -also ATL AMS DL 764 BCRF livery One of my favorite planes tbh 2x seating on the windows is perfect

Looks like a 787 wing tip to me...

Why does the Munich airport have a ziggurat

i can test this on my intel i3 cpu ?💀💀

is this a simulation or actual footage? It looks so real.

I'm waiting for the quantum computer age, then you could also simulate this including interactions with the sun etc. 😍

I don't know if you have contacts at the company's you get the various processors you use, anyone who could actually build custom prototype processors and mother boards, but I think I have a way to get faster processors which means faster processing times... SUPER SILVER.... Some university created that alloy a while back, I want to alloy it with copper and reinvent the wire with a hexagonal strand of super silver/copper alloy instead of the normal round strand of copper. The electric travels on the outside of the wire so a hexagonal shape will have more area in the same gauge... Super silver is a super conductor... CRYO whatever you make out of the new super conducting alloy so the molecules align to add to the efficiency of transferring power. On the PCB, replace the copper traces with the new alloy, increase the thickness slightly so the trace can have a half hexagon shape, more area for electrons to flow on. Super silver is super conducting so a hexagonal wire made of it should be able to flow a denser signal way faster than normal 99.9% oxygen free round wire can.... In theory anyways... But I think it will work. I'm usually never wrong with this type of stuff. I just wanted stronger solder joints and was looking into silver solder and found SUPER SILVER.... if the processors internals were made with a super silver alloy then you'd have super fast processors. I really wanna make black glass OC81D germanium transistors with an alloy, either just the leads or alloy some internal parts... Can it be added as impurity to the wafer so I can have some new flavors of fuzz for my guitar??. I really feel I have a stock option plus cash type idea here with this whole SUPER SILVER ALLOY. I'm just a nobody so no "business" people will listen to me and take me seriously. Super conducting is just that... Conducts shit super quick... Hence the word super conductor. I feel you have to cryo whatever is allowed so every single molecule in it aligns perfectly straight... It's like a super highway for electrons. Kind of like greasing a slip n slid before you slide down it.... I play guitar so I really wanna remake tube innards with new super conducting alloys for new flavors of tone. The turrets need alloyed, all component leads need reinvented with super conducting leads already built into them. I feel the quantum computing world would really benefit from it... What if they alloyed all the magnets at CERN... Each one has tons of PCBs and wire connecting it all.... Imagine making just the wire super conducting. Then imagine if the wire/PCBs AND THE SOLDER WAS SUPER CONDUCTING...... You got any contacts at Intel I can talk too?? I think, at the very least,,,, I'm really on to something with hexagonal stranded super silver/copper alloy wire...

this might be your most ambitious simulation yet

Thost turns to align the plane for final approach are so aggressive

its faaaaat flllatttt

What does coloring represent?

I wish someone could implement this in Blender (3D software) for creative projects...

Love your work n your triple GPU setup!

HI , Can this cfd do conjectate heat transfer analysis ?

What motherboard are you using?

Hey Moritz, how do you get the rotors to revoxelize without the bounding boxes overlapping and destroying the fuselage/body geometry?

I can hear that cpu scream from here...😂

missed that ● 300 km/h airspeed, 10° angle of attack ● Reynolds number = 51M, y+ = 538 /// your fucking probe dynamic data is missing also no surface interaction or the lack of specified are the engines ON or OFF / is this a wind tunnel test e.g. ? WTF it is we are looking at

This is great! I like how you think. A long time ago I combined Bresenham and Z-Buffer to do hidden line removal! And was working on including dithering (for shading and signal processing) into it too. I also worked with badly rounded data and the effects it had on the FFT's being used to signal process it. I kept going and unrolled all the fft loops flat, and successively rounded the FFT butterfly LUT's into zero crossings, producing an amazingly simple algorithm that recovered Walsh-Hadamard sequency space. And it was surprisingly good at doing the signal analysis/processing. Effectively it took the matrix multiplications inherent in the FFT down to simple additions (sign bit for negatives) Sound familiar? I suggested a similar thing could be done for the matrix multiplications in modern AI inferencing, and viola! we have 1.58 bit 'bitnet' solutions that could possibly be implemented on *simple* optical processors, no mults needed ;)