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Questions tagged [gpgpu]

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).

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How is it supposed to control GPU clocks and voltages on Linux?

I have several modern GPUs, both ATIs (lets take Polaris 480) and Nvidia(Lets take 1080) models. I am using them for various purposes, like mining, video rendering, physics processing. Each task is ...
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1answer
96 views

How do the “games-oriented” NVIDIA-GPU-based cards behave w.r.t. CUDA computation?

NVIDIA makes GPUs, which are used both for graphics and for graphics-unrelated computing. It also publishes compute-related specs of its GPUs. Now, when it comes to cards: there are some cards that ...
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10answers
22k 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 ...
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408 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 ...
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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 ...
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63 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 ...
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1answer
2k 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 ...
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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 ...
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1answer
3k 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....
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0answers
361 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 ...
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1answer
229 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 ...
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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 ...
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1answer
188 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 ...
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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)...
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3answers
2k 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) ...
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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 ...
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0answers
193 views

Use Nvidia GPU as primary video output and AMD GPU as OpenCL on arch

How can I use my Nvidia Titan X as my main video output with proprietary driver and an AMD Fury X as a OpenCL card? Is it possible to have Catalyst and Nvidia proprietary driver installed at the same ...
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1answer
1k views

How to enable the disabled Streaming Processors (SM)?

I am using NVIDIA Quadro K2000 GPU. I ran deviceQuery.exe, the results of which are below. It says that I have only 2 SM units. I am not sure if I really have only 2 SMs or some of my SMs are disabled ...
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1answer
454 views

GPU's performance mainly depends on which factor [closed]

There are many specs given about a GPU. I want to know by which single factor its performance can be measured; would it be based on pixels/sec, clock speed, number of cores, amount of memory, memory ...
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1answer
930 views

Nvidia: GPU monitor application

What software can show statistics about the usage of the GPU in a graphic interface on Linux. I know that there an Nvidia System Management which provided the command nvidia-smi -l 1 which shows ...
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1answer
86 views

GPU Processing overkill?

Is there such a point where using GPU Processing or Coprocessors (such as the Intel Xeon PHI card or the Nvidia Tesla card) can actually reduce the speed of which a software computes data? Say I had ...
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1answer
2k views

Execute OpenCL code on the CPU

I want to execute OpenCL code on a PC which doesn't have a graphics card, nor any other hardware component which is able to execute OpenCL. Is it possible compile my OpenCL code in a way that it can ...
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1answer
206 views

Are there any programs or drivers that can accelerate encryption using gpu/igp?

Does anybody know of any linux tool that offloads- preferably in a transparent fashion- encryption to gpu?. I'd like to buy an amd e350 apu for my nas and it would be great if i could boost otfe ...
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460 views

Windows Server Tesla/GPU Hosting

I have a Windows calculation-intensive solution that uses NVidia's GPGPU (CUDA). I am looking to host my application on the cloud and expose it via a Web service. The only host I found was AWS, but ...
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2answers
2k views

Tesla C2075 as a VGA

I'd like to use a Tesla C2075's VGA (D-SUB) DVI output. I installed the latest Quadro driver (as suggested by the NVIDIA driver finder) on the 64-bit Windows 7, but it doesn't seem to be working. E.g. ...
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187 views

Matching hardware requirements to software ( BARRA and GPGPU )

I am trying to build a PC capable of running in the best case both GPGPU-sim and BARRA sim. And if impossible to match I am going to stick with GPGPU-sim. Below is a list of software requirements and ...
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0answers
731 views

Ubuntu 12.10, Unity, AMD 12.11 beta drivers, AMD APP SDK 2.7 and OpenCL detection of multiple gpus

I'm using Ubuntu 12.10, AMD 12.11 beta drivers, AMD APP SDK 2.7 and OpenCL. I have three amd radeon 7990s plugged in each of which are a dual 7970 so I have six gpus altogether. I plan to go up to ...
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1answer
198 views

Stop extending desktop to only GPU for CUDA

I have a GTX570 in a win7 machine that I use for CUDA GPGPU work. I am getting some device timeouts; the solution to this is to perform computations on a second card with no displays extended to it. ...
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4answers
2k views

Options for scalable commodity GPU servers for CUDA?

I'm doing some machine learning work that benefits tremendously from using the GPU. I'm kind of at the limits of my current setup (A workstation with a single GTX580) and I really don't have room for ...
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0answers
1k views

Different drivers for different Nvidia GPUs in the same system

I have the following two video cards installed in my Arch Linux system: $ lspci | grep -i vga 01:00.0 VGA compatible controller: NVIDIA Corporation G84 [Quadro FX 1700] (rev a1) 02:00.0 VGA ...
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1answer
234 views

What kind of CPU/GPU integration is offered by APUs?

I'm truly fascinated by the idea of GPGPU and using the GPU for heavy processing. I'm seeing that also APUs (Accelerated Processing Units, CPU+GPU on the same chip) are gaining a consistent popularity....
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Mixing AMD and NVIDIA graphics cards on one system [duplicate]

Possible Duplicate: Multiple video cards on Windows 7 I have a bit of a problem with graphics cards that I'd appreciate advice on. On the one hand, I need an ATI graphics card, because a single ...
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1answer
695 views

Do I have to reboot the system after getting an “unspecified launch failure” in kernel?

After a kernel fails due to "unspecified launch failure", the only way I am able to use the device again is after a system reboot. Is there another way to do this? If I attempt to to run again after ...
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1answer
829 views

Does a GPU-Based video converter exist beyond Badaboom and Avivo?

I've been looking for one for a long time and I've found Badaboom to be incredibly bad and Avivo not to be able to run on my GPU (I have an nVidia GPU). Does anybody know of any other solutions?
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15answers
199k views

Why are we still using CPUs instead of GPUs?

It seems to me that these days lots of calculations are done on the GPU. Obviously graphics are done there, but using CUDA and the like, AI, hashing algorithms (think bitcoins) and others are also ...
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2answers
17k views

VMware: How to directly access the GPU

I have VMware Workstation running on Ubuntu host with a Ubuntu Guest. Is it possible to directly access the GPU from the VM? I want to run CUDA on the VM
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3answers
120 views

Some questions on the feasibility of GPU as the primary processor for a system

1) Are there any manufactures that offer boards that have GPGPU's as their primary processors out on the market at all? Ones that would fit into a mini-ITX form factor would be of interest but the ...
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2answers
14k views

ATI Mobility Radeon HD 4500 - Support OpenCL or not?

I wanted to run Folding@Home on my laptop. I downloaded version 6.41 which supports GPGPU for ATI with the r_700 switch. It seemd too work slow so I took a look with GPU-Z and I was puzzled. ATI ...
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1answer
874 views

Syntax high-lighting a CUDA (.cu) program in visual studio (2005 and/or 2008)

I'm new to GPU-programming with CUDA and have just installed everyting on my machine to get started, and it's working. Big victory! However, when I open the code samples in VS(2005 and 2008) NVidia ...