Recent questions tagged gpgpu

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gpgpu - CUDA pow function with integer arguments

I'm new in CUDA, and cannot understand what I'm doing wrong. I'm trying to calculate the distance of object ... pow not defined in kernel code? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gpgpu - Strategies for timing CUDA Kernels: Pros and Cons?

When timing CUDA kernels, the following doesn't work because the kernel doesn't block the CPU program execution ... )*1000; //milliseconds } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gpgpu - Why is the constant memory size limited in CUDA?

According to "CUDA C Programming Guide", a constant memory access benefits only if a multiprocessor constant ... of device memory otherwise. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gpgpu - How to call a host function in a CUDA kernel?

As the following error implies, calling a host function ('rand') is not allowed in kernel, and I wonder ... ("xS_v1_cuda") is not allowed See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gpgpu - How can I flush GPU memory using CUDA (physical reset is unavailable)

My CUDA program crashed during execution, before memory was flushed. As a result, device memory remained occupied. ... memory in this situation? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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548 views

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gpgpu - Can string data types be used in C++ CUDA kernels?

I am writing a CUDA kernel in which I'm using the string data type in C++. However, the compiler is throwing ... a char array within a kernel? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gpgpu - Linking with 3rd party CUDA libraries slows down cudaMalloc

It is not a secret that on CUDA 4.x the first call to cudaMalloc can be ridiculously slow (which was ... has plausible explanation for this ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gpgpu - Error using Tensorflow with GPU

I've tried a bunch of different Tensorflow examples, which works fine on the CPU but generates the same error when ... taking up your time... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gpgpu - Processing Shared Work Queue Using CUDA Atomic Operations and Grid Synchronization

I'm trying to write a kernel whose threads iteratively process items in a work queue. My understanding is that ... marked_device)); return 0; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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gpgpu - How are 2D / 3D CUDA blocks divided into warps?

If I start my kernel with a grid whose blocks have dimensions: dim3 block_dims(16,16); How are the grid ... GPU Compute Capability of 2.0. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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