CUDA编程模型需要CPU和GPU协同工作,是一个异构模型,这就引出了所谓host和device的概念: CUDA编程中,用host指代CPU及其内存,而用device指代GPU及其内存(即显存); CUDA程序中既包含host程序,又包含device程序,它们分别在CPU和GPU上运行; host与device之间可以进行通信,它们之间可以进行数据拷贝。 引入上述概念后,一个典型...
you can develop, optimize, and deploy your applications on GPU-accelerated embedded systems, desktop workstations, enterprise data centers, cloud-based platforms, and supercomputers. The toolkit includes GPU-accelerated libraries, debugging and optimization tools, a C/C++ compiler, and a runtime libra...
When a Thrust function is called, it inspects the type of the iterator to determine whether to use a host or a device implementation. This process is known as static dispatching since the host/device dispatch is resolved at compile time. Note that this implies that there is no runtime over...
OpenACC CUDA Profiling Tools Interface See More Tools Domains with CUDA-Accelerated Applications CUDA accelerates applications across a wide range of domains from image processing, to deep learning, numerical analytics and computational science.
CUDA error: device-side assert triggered CUDA是一种通用的并行计算平台和编程模型,可以使用CUDA C/C++编写高性能的GPU加速代码。然而,在使用CUDA进行开发时,有时会遇到"cuda error: device-side assert triggered"的错误。本文将介绍这个错误的原因,以及如何解决它。
MyKernel<<<1000,128>>>(p1);// Launch kernel on device 1 1. 2. 3. 4. 5. 6. 7. 8. 9. Stream and Event Behavior 如果将内核启动发布到与当前设备不相关的流,则启动失败,如以下代码示例所示。 cudaSetDevice(0);// Set device 0 as current ...
torch.cuda.current_stream() 返回当前选择地 Stream。...class torch.cuda.device(device) Context-manager 用来改变选择的设备。...参数:device (torch.device 或者 int) – 要选择的设备索引。如果这个参数是负数或者是 None,那么它不会起任何作用。 阅读全文/改进本文 ...
CU_DEVICE_ATTRIBUTE_SHARED_MEMORY_PER_BLOCK = 8 Deprecated, use CU_DEVICE_ATTRIBUTE_MAX_SHARED_MEMORY_PER_BLOCK CU_DEVICE_ATTRIBUTE_TOTAL_CONSTANT_MEMORY = 9 Memory available on device for __constant__ variables in a CUDA C kernel in bytes CU_DEVICE_ATTRIBUTE_WARP_SIZE = 10 Warp size ...
CUDA的全称是Compute Unified Device Architecture,是显卡厂商NVIDIA推出的运算平台,开发者可以使用C语言来编写CUDA代码,使用NVCC编译器可以在支持CUDA的GPU处理器上以高速运行。虽然AMD也做显卡,但是CUDA是老黄自家提出的标准,没带AMD一起玩儿,所以,提到基于CUDA的高性能计算,使用的都是Nvidia的显卡。
cuCtxGetCurrent(&context);printf("Current context = %p,当前无context\n", context);// cuda runtime是以cuda为基准开发的运行时库// cuda runtime所使用的CUcontext是基于cuDevicePrimaryCtxRetain函数获取的// 即,cuDevicePrimaryCtxRetain会为每个设备关联一个context,通过cuDevicePrimaryCtxRetain函数可以获取到...