64-bit and/or CUDA version?

[bobross]

Any thoughts on this?  Going 64-bit or supporting CUDA seems like it would be perfect for this type of program?   

[Laura]

Any thoughts on this?  Going 64-bit or supporting CUDA seems like it would be perfect for this type of program?   

Multithreading would be nice, too
Either of those things would most likely mean rewriting most of the code from scratch.

[bobross]

Any thoughts on this?  Going 64-bit or supporting CUDA seems like it would be perfect for this type of program?   

Multithreading would be nice, too
Either of those things would most likely mean rewriting most of the code from scratch.

Multithreading would be huge.  So sad seeing 1 CPU totally maxed out while 3 other just sit there idle. 

[deoxy99]

I only have 1 or 2 CPUs. I don't need multireading.

[Laura]

I only have 1 or 2 CPUs. I don't need multireading.

Any modern computer has more than one CPU core. Two cores is even getting old. Now it's four, pushing six, and even eight. In mainstream PCs.

[deoxy99]

I have only 2 CPUs.

[Laura]

I have only 2 CPUs.

Then multithreading would still mean nearly twice the simulation speed for you

[deoxy99]

I have only 2 CPUs.

Then multithreading would still mean nearly twice the simulation speed for you

I think it's fine without it.

[Dan Dixon]

Multi-threading is on the list of features I'll be adding to version 2 (hopefully in the next few months).

The big hurdle is ensuring that the Universe Sandbox user base has upgraded to .NET 4 as currently Universe Sandbox only requires .NET 2.

Quoting an earlier post:
.NET 4.0 includes a Parallel library that makes adding support for an unlimited number of processors very easy. I've done some early testing of the parallel library and am very excited about the possibilities.

[Laura]

Multi-threading is on the list of features I'll be adding to version 2 (hopefully in the next few months).

The big hurdle is ensuring that the Universe Sandbox user base has upgraded to .NET 4 as currently Universe Sandbox only requires .NET 2.

Quoting an earlier post:
.NET 4.0 includes a Parallel library that makes adding support for an unlimited number of processors very easy. I've done some early testing of the parallel library and am very excited about the possibilities.

Oooh
I'll jump through all kinds of hoops for multithreading, so installing a new .NET is nothing, really.

[Chaotic Cow]

Multi-threading will increase performance a lot.

At least I would believe so.

[Laura]

Multi-threading will increase performance a lot.

At least I would believe so.

It might even make accurate simulations of entire solar systems with moons tolerable

[moozoo]

Instead of CUDA, how about OpenCL support?

http://www.hoopoe-cloud.com/Solutions/OpenCL.NET/Default.aspx
or
http://sourceforge.net/projects/openclnet/

[Chaotic Cow]

Dan, can't you add to the installer .net 4.0?

[supern0va]

Yeah, I just bought this, and overall I like it a lot. It's disappointing though, when certain large scale simulations get bogged down and I have 1 of 8 available threads running at full tilt (clocked at 3.8 ghz) and my others aren't doing anything.

[deoxy99]

My computer is 32 bit. Can you still keep the 32-bit version as well?

[atomic7732]

My computer is 32 bit. Can you still keep the 32-bit version as well?

Thats quite obvious. 0.5% of people have 64-bit. He's not gonna throw out the 32 bit.

*Dan throws out the 32 bit* NOOOOOO!!!!!!!!!!!!!!!!!!

[Dan Dixon]

My computer is 32 bit. Can you still keep the 32-bit version as well?

0.5% of people have 64-bit. He's not gonna throw out the 32 bit.

I think it might be more than 1 in 200 of Universe Sandbox users are running 64 bit systems. The Steam Hardware survey shows that more than 30% of users are running a 64 bit OS.
http://store.steampowered.com/hwsurvey/

Either way... I have no plans to abandon 32 bits users. No worries.

[Chaotic Cow]

64-bit is getting more popular these days now that Software is requiring more RAM these days.