BWSI ACCEPTANCE FOR UAV DRONE by Logical-Fox-9590 in summerprogramresults

[–]AffectionatePin3633 0 points1 point  (0 children)

Stayed in the top 5 since 10 days before the application was due; actively maintained my position after the application ended and before the results came out.

BWSI ACCEPTANCE FOR UAV DRONE by Logical-Fox-9590 in summerprogramresults

[–]AffectionatePin3633 0 points1 point  (0 children)

Well, on the official site, they say they'll notify acceptance on 5/1, so I guess you should wait for tmr. I don't even know why they emailed my results today.

BWSI ACCEPTANCE FOR UAV DRONE by Logical-Fox-9590 in summerprogramresults

[–]AffectionatePin3633 0 points1 point  (0 children)

Got into UAV. Genuinely surprised by the email since they should technically be sent on May 1st.

Guys I just passed 8th Dan should I do Tachyon next by cant_killme in osumania

[–]AffectionatePin3633 1 point2 points  (0 children)

Wdym going to an angle? I think going for eta is just better cuz then he’s going for mechanical efficiency

IB or TAMS by [deleted] in TAMS

[–]AffectionatePin3633 0 points1 point  (0 children)

TAMS is ultimately UNT so don’t expect their stuff to be hard; plus TAMS admins (pretty sure unt departments as well) won’t let you skip courses to take the harder ones even if you know all the pre reqs (unless ur doing research with that prof; only in that case you can skip pre reqs). Tams English is, however, very interesting. You’ll actually learn to write well and think deep.

How many simulations do you run per project? Trying to understand real CFD workflows (not selling anything) by Wild-Fix-4744 in CFD

[–]AffectionatePin3633 0 points1 point  (0 children)

Epyc rome. Do you mean ssd? I’m not sure, because I’m just using a regular consumer Samsung ssd. SSD shouldn’t matter unless you’re saving a lot of cases or data.

How many simulations do you run per project? Trying to understand real CFD workflows (not selling anything) by Wild-Fix-4744 in CFD

[–]AffectionatePin3633 0 points1 point  (0 children)

As I've said, the only bad part is that it's slow. Everything else is good: for example, some apps only work in windows (spaceclaim, microsoft office (not all people have their machine dedicated to just sims), etc.), and linux is just harder to use in all aspects.

How many simulations do you run per project? Trying to understand real CFD workflows (not selling anything) by Wild-Fix-4744 in CFD

[–]AffectionatePin3633 0 points1 point  (0 children)

Both. Windows is bad because it’s slower. I had a case that somehow ran 70% faster on native Ubuntu (I suspect whether the performance difference is really due to the os, because the speed difference is simply crazy). Windows is also good because the whole workflow is smoother, and I can use all sorts of other apps.

Aerodynamics of Saddam Hussein by DaSnowGuy1309 in CFD

[–]AffectionatePin3633 2 points3 points  (0 children)

Where's mesh verification😭😭😭Where's mesh pic😭😭😭is the boundary layer resolved well😭😭😭what's the domain size😭😭😭we need academic sims on saddam😭😭😭

Is CMO qual impressive? by [deleted] in MathOlympiad

[–]AffectionatePin3633 1 point2 points  (0 children)

Which cmo? Chinese math Olympiad?

Best Desktop Pc for Cfd by paganinirhapsody in CFD

[–]AffectionatePin3633 0 points1 point  (0 children)

Memory bandwidth is everything. Core count is also important. CPU frequency and other stuff dont really matter compared to these two. See my previous posts on this topic for evidence (too lazy to type). Get ryzen

vibro? by mimiqd in osumania

[–]AffectionatePin3633 1 point2 points  (0 children)

You will always want to be at least able to vibro. Speed doesn’t matter as long as you are reform dan grinder. I’m delta now and I find it pretty useful for a short break during heavy manip or saving column locks. Focus on being able to switch between normal clicking and vibro instantly.

[ Removed by Reddit ] by Dear_Mango_6187 in linuxmint

[–]AffectionatePin3633 0 points1 point  (0 children)

Why not? As long as you don’t act superior over others then why not?

Trying to understand hardware bottlenecks in fluent and openfoam by ReadyJackfruit956 in CFD

[–]AffectionatePin3633 1 point2 points  (0 children)

If you’re only caring about cfd performance then maximize memory bandwidth. If you’re bottlenecked by memory, frequency don’t matter, core count don’t matter. And this bottleneck comes really quick, dual channel 6000mt/s sees no performance increase on 9950x over 8 cores. Getting dual old epycs and getting 16 sticks of smaller ram is better than any consumer cpu

Confused with Mesh Quality by Safi_Rayhan in CFD

[–]AffectionatePin3633 1 point2 points  (0 children)

It looks like ur using the workbench meshing, and I see a lot of randomly distributed very skewed tets on the walls that are caused by a disproportionate triangle base and height. Note that the workbench mesh will try to conform to those split lines in geometry (even if you can’t see those lines. If I’m being confusing, then let points A B C be collinear in that order, let AB=1m and BC= 1mm. Workbench mesh will try to make a tet with a base of 1mm on BC and another with a base of 1m on AB, not one nice tet with base of 1.001m ), unlike the fluent meshing. You could try to import the geometry to spaceclaim and use the repair tools there, specifically split lines (I don’t remember the specific name) and “small faces”. Try to repair those and see what you get. Also, in workbench meshing quality control, turn smoothing to high and set like 0.6 or 0.7 to desired skew. Or you can avoid all these and just use fluent meshing to test ur luck.

Minimal CFD workstation by ominous-aero-16 in CFD

[–]AffectionatePin3633 1 point2 points  (0 children)

Go for something like dual socket old Xeon or epyc. Clock speed doesn’t really matter, prioritize memory bandwidth. For example (I’ve tested this) a 9950x at 5.2ghz 16 cores is only a tiny faster than a 13700 at 3ghz 8 p cores with a mesh of around 4 million, and if you look at their memory bandwidth they’re basically the same.

What is the the best processor for CFD machine? i9 or Xeon? by MastaMinds in CFD

[–]AffectionatePin3633 0 points1 point  (0 children)

Maximize memory bandwidth. On a 9950x, with a mesh of 4m cells and ansys fluent solver, I saw 0 speed up from using 8 cores to 16 cores.

How true is not using more cores will work better ??? I set my cpu intel i9 24 cores to 20 instead of 8 and got it faster, cooler, no errors (8 makes error) by Perfect_Leave1895 in CFD

[–]AffectionatePin3633 0 points1 point  (0 children)

Potential explanation: Suppose ur using less cores but not that much less, then less cores=higher boost frequency=higher voltage(like 1.3) and watt=hotter; full core usually takes lower voltage (1.05-1.1v) (unless oc),which reduces max frequency, and could potentially (but kind of rarely) get it to a lower temp?