Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

GPGPU (General-purpose computing on graphics processing units) is the means of using a graphics processing unit (GPU), which typically handles computation only for computer graphics, to perform computation in applications traditionally handled by the central processing unit (CPU).

102
votes
10answers
21k views

Why do people use GPUs for high-performance computation instead of a more specialized chip?

From my understanding, people began using GPUs for general computing because they are an extra source of computing power. And though they are not a fast as a CPU for each operation, they have many ...
3
votes
0answers
217 views

Debian 9: NVIDIA Card + intel graphics

I have a little bit of a dilemma right now: I have a NVIDIA graphics card and I need to use it for scientific calculations only (GPU). I have Debian 9 installed on my system and I also have fvwm ...
0
votes
0answers
60 views

Can I load raw data (a text file or any input file) into the GPU's memory and access the data from there?

I am translating C code into OpenCL to run it on the GPU. My code on the GPU is painfully slow. I believe the slowness is due to the communication overhead incurred by the system. I feel that if I ...
6
votes
1answer
3k views

Is it possible to mount video cards via USB or Thunderbolt or…?

I need to build a (cheap) computer that might serve to: mine digital currency render 3D animations solve SETI problems ...etc Basically I am just using the GPU's to solve math problems. I need very ...
0
votes
0answers
45 views

Ldap key server using ldapphpadmin

I configured an Ldapphpadmin server to save some pgpkeys and some user of an company so i tried to test through thinderbird i put the adress of the ldap server it conect perfectly the problem is ...
2
votes
1answer
1k views

How to set the default GPG encryption key?

Say I am using only one encryption key most the time. How do I set the default encryption key in order to avoid mentioning it in the encryption command In other word, I want this command: gpg -e ...
0
votes
0answers
71 views

GeForce GTX 750 Ti Display Issue

[Perspective crop - original image: https://i.stack.imgur.com/kg1DP.jpg ] To resolve the above shown issue I have tried 3 different versions of drivers and also changed my desktop PC. But the problem ...
1
vote
1answer
2k views

Why Nvidia Pascal has both FP32 and FP64 cores? Why I can not use them simultaneously?

I am trying to understand Nvidia's GPU architecture but I am a bit stuck on something that appears to be quite simple. Each Streaming Multiprocessor in the Pascal consists of 64xFP32 and 32xFP64 cores....
0
votes
0answers
236 views

How to have graphics enabled in multiple VMs without dedicated pass-through (GPU emulation?)

Is there a way to emulate GPUs in a VM without doing an actual GPU-passthrough? Now now, before y'all close this question saying "GPU emulation is not possible, it won't increase performance", let me ...
1
vote
1answer
152 views

GPGPU and motherboard compatibility

How can I verify the compatibility of a motherboard with GPU cards that have over 4GB memory, such as Tesla K40, K80, Titan X, etc.? The problem is, Tesla K40 does not work properly on AMD SuperMicro ...
1
vote
0answers
148 views

Hardware limitations in data transfer (high throughput)

I am currently looking into the hardware limitations for a scientific setup. We are running into high-load related loss of data. I will first explain the problem and propose a solution, which I hope ...
1
vote
1answer
150 views

How Shaders map to actual GPU hardware

In an attempt to better understand GPU's and GPU programming, I would like to get a better mental picture of shaders and how they are implemented on the GPU. Is there a 1 to 1 relationship between a ...
1
vote
1answer
1k views

Linux: How to use onboard graphics card for graphics and not the dedicated GPGPU?

I recently bought a GPGPU (a Nvidia GEFORCE GTX 950 card) so I could use CUDA wrappers in my C code. After installing CUDA 8.0 and plugging in my monitors into my onboard graphics card (not the GPGPU)...
0
votes
3answers
1k views

Do unused GPU cores get used if I add dedicated graphics card?

If this question is dumb, I apologize. I am a somewhat advanced novice in all things hardware, and still learning. I have an AMD A8-7600. It has 10 cores (4 CPU + 6 GPU). I needed multiple (4) ...
1
vote
1answer
2k views

are SLI bridges necessary for general purpose GPU computing?

I looking at computer configuration with an option for adding a SLI bridge. The intended use of the GPUs are for general purpose/scientific computing, and not games. My question is, will having a SLI ...

15 30 50 per page