Use Python to write the CUDA program, and use python to write the cuda Program
There are two ways to write a CUDA program using Python:
* Numba* PyCUDA
Numbapro is no longer recommended. It is split and integrated into accelerate and Numba.
Example
Numba
Numba optimizes Python code through the JIT mechanism. Numba can optimize the hardware environment of the Loca
write in front
The content is divided into two parts, the first part is translation "Professional CUDA C Programming" section 2. The timing YOUR KERNEL in CUDA programming model, and the second part is his own experience. Experience is not enough, you are welcome to add greatly.
Cuda, the pursuit of speed ratio, want to get accurate time, the timing function is
compiler and language improvements for CUDA9
Increased support for C + + 14 with the Cuda 9,NVCC compiler, including new features
A generic lambda expression that uses the Auto keyword instead of the parameter type;
Auto lambda = [] (auto A,auto b) {return a * b;};
The return type of the feature is deducted (using the Auto keyword as the return type, as shown in the previous example)
The CONSTEXPR function can contain fewer restrictions, including var
Cuda Memory Model:
GPU chip: Register, shared memory;
Onboard memory: local memory, constant memory, texture memory, texture memory, global memory;
Host memory: host memory, pinned memory.
Register: extremely low access latency;
Basic Unit: register file (32bit/each)
Computing power 1.0/1.1 hardware: 8192/Sm;
Computing power 1.2/1.3 hardware: 16384/Sm;
The register occupied by each thread is limited. Do not assign too many private variables to it dur
One, using the GPU module provided in the OPENCV
At present, many GPU functions have been provided in OpenCV, and the GPU modules provided by OPENCV can be used to accelerate most image processing.
Basic use method, please refer to: http://www.cnblogs.com/dwdxdy/p/3244508.html
The advantage of this method is simple, using Gpumat to manage the data transfer between CPU and GPU, and does not need to pay attention to the setting of kernel function call parameter, only need to pay attention to the l
CUDA 6, CUDAWarp
Logically, all threads are parallel. However, from the hardware point of view, not all threads can be executed at the same time. Next we will explain some of the essence of warp.Warps and Thread Blocks
Warp is the basic execution unit of SM. A warp contains 32 parallel threads, which are executed in SMIT mode. That is to say, all threads execute the same command, and each thread uses its own data to execute the command.
A block can be
Summary of accelerated installation of Amber11 + AmberTools1.5 + CUDA
The following installation method is based on some of the previous posts on the Forum simulated by the numerator. The installation and testing can be successful as long as the operation is correct. Considering that Amber11 is generally installed on clusters, the intel compiler and Openmpi parallel tool are used for installation. You need to purchase the Amber11 software to obtain th
1, based on VC + + WIN32+CUDA+OPENGL combination of remote sensing image displayIn this combination scenario, OpenGL is set to the following two ways when initialized, with the same effect// setting mode 1glutinitdisplaymode (glut_double | GLUT_RGBA); // setting Mode 2glutinitdisplaymode (glut_double | GLUT_RGB);Extracting the pixel data from the remote sensing image data, the R, G, and b three channels can be assigned to the pixel buffer objects (pb
Document directory
Function qualifier
Variable type qualifier
Execute Configuration
Built-in Variables
Time Functions
Synchronous Functions
1. Parallel Computing
1) Single-core command-level parallel ILP-enables the execution unit of a single processor to execute multiple commands simultaneously
2) multi-core parallel TLP-integrate multiple processor cores on one chip to achieve line-level parallel
3) multi-processor parallelism-Install multiple processors on a single circuit board and i
Cuda register array resolution, cuda register
About cuda register array
When performing Parallel Optimization on some algorithms based on cuda, in order to improve the running speed of the algorithm as much as possible, sometimes we want to use register arrays to make the algorithm fly fast, but the effect is always u
Today we have a few gains, successfully running the array summation code: Just add the number of n sumEnvironment: cuda5.0,vs2010#include "cuda_runtime.h"#include "Device_launch_parameters.h"#include cudaerror_t Addwithcuda (int *c, int *a);#define TOTALN 72120#define Blocks_pergrid 32#define THREADS_PERBLOCK 64//2^8__global__ void Sumarray (int *c, int *a)//, int *b){__shared__ unsigned int mycache[threads_perblock];//sets the shared memory within each block threadsperblock==blockdim.xint i = t
"Mobile license plate recognition" Car is the necessary means of transport, which also leads to more and more vehicles on the road, in the drive to continue to facilitate the people at the same time, all kinds of jokes appear."Mobile license plate Recognition" For example:"Thai taxi driver: Chinese people are most anxious." Xu Lang: The Thais are the most abrasive; Thai taxi driver: Where are you from China
This is the third article in the series. The addresses of the first two articles are described as follows: introduction and explanation 1. I wrote this series of articles for the following purposes: 1. Popularize the technologies and knowledge points related to License Plate Recognition; 2. help developers understand the Implementation Details of easypr; 3. Improve communication.
The easypr Project address is here: GitHub. To run the easypr program,
Install cuda6.5 + vs2012, the operating system is win8.1 version, first of all the next GPU-Z detected a bit:
It can be seen that this video card is a low-end configuration, the key is to look at two:
Shaders = 384, also known as Sm, or the number of core/stream processors. The larger the number, the more parallel threads are executed, and the larger the computing workload per unit time.
Buswidth = 64bit. The larger the value, the faster the data processing speed.
Next let's take a look at the
a picture of open source License Agreement, open Source license GPL, BSD, MIT, Mozilla, Apache and LGPL differences Open source licenses The difference between GPL, BSD, MIT, Mozilla, Apache, and LGPLFirst borrow a fairly straightforward diagram of the people who are interested to divide the various protocols: Open source License GPL, BSD, MIT, Mozilla, Apache a
Transplant and optimization of license plate recognition algorithm based on DM6437Http://cdmd.cnki.com.cn/Article/CDMD-10701-1013114119.htm
Transplant 52-54 of 5.1 license plate recognition algorithm
Establishment of 5.1.1 license plate recognition algorithm Project
Compiling and debugging of 5.1.2 algorithm 52-53
Test 53-54 of 5.1.3 algorithm
5.2
Open source licenses The difference between GPL, BSD, MIT, Mozilla, Apache, and LGPLFirst borrow a fairly straightforward diagram of the people who are interested to divide the various protocols: Open source License GPL, BSD, MIT, Mozilla, Apache and LGPL differencesThe following is a brief introduction to the above agreement:BSD Open Source AgreementThe BSD Open source agreement is an agreement that gives users a great deal of freedom. Basically user
Windows7.
3. C compiler, recommended VS2008, and this blog consistent.
4. Cuda compiler NVCC, can be free of charge license download Cuda toolkitcuda download from the official website, the latest version is 5.0, this blog is the version.
5. Other tools (such as visual Assist, auxiliary code highlighting)
When you're ready, start installing the software. VS2008
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