You are using the wrong operator for the matrix multiplication. See the correct one below. B<- x=cbind(1,runif(length(id))) beta=c(0.5,0.5) x_mis=cbind(0,rnorm(length(id))) para=c(0) com.data <- data_sim(id=rep(
I have this code, basiclly the example NVIDIA provides for using shared memory. I am using this to compute multiplication of a vector by a matrix of size 1K * (1K*2K) and larger. The problem is that it’s faster than CUBLAS functions cublasSgemm or cublasSgemv. Shouldn’t CUBLAS be f...
Matrix multiplication problem is a typical example of dynamical programming. Suppose you have to evaluate an expression like A*B*C*D*E where A,B,C,D and E arematrices. Since matrix multiplication is associative, the order in which multiplications areperformed is arbitrary. However, the number ...
I am using cuBLAS for the first time. I am trying to compile the SDK example (given at the end of this post) I have saved this in file named cublasExample.c .I am facing some problems in successfully compiling the code. 1- How do I compile this? Shall I use gcc cublasExample.c ...
Parallel matrix multiplication on the Connection Machine - Tichy - 1988 () Citation Context ...ethods on the CM. The NAS Systems Division has ported the flow code ARC3D [7]. RIACS personnel have implemented a particle simulation of hypersonic flow [I], [2]; ei_cient matrix multiplication...
cublasSgemm for large matrix multiplication on gpu in C++ Guide Part 1:cpp cuda programming tutorial Part 2: cuda activation kernels Part 3: cublasSgemm for large matrix multiplication on gpu code demo.cu #include<cuda_runtime.h>#include<cublas.h>#include<cublas_api.h>#include<cublas_v2.h...
测试及相关代码见:https://github.com/suijingfeng/engine/blob/master/code/renderercommon/test/test_matrix_multiplication.c,写出高质量程序是不容易的,因为其受GCC编译参数、编译版本的影响。 SSE2是Intel在Pentium 4处理器的最初版本中引入的,但是AMD后来在Opteron 和Athlon 64处理器中也加入了SSE2的支持。SSE2指...
矩阵数乘 M_numul Number Multiplication (create). 矩阵对应元素乘/除 (哈达玛积) M_pmuldiv Hadamard Product : Multiply / Divide every element in the two Matrix-s (create). 矩阵对矩阵,对各行进行数乘 M_numul_m Matrix Number Multiplication (using matrix transfer) 求逆 M_Inverse Inverse (crea...
[D1,D2] = gpucoder.batchedMatrixMultiply(A1,B1,A2,B2) performs matrix-matrix multiplication of a batch of matrices A1,B1 and A2,B2. The gpucoder.batchedMatrixMultiply function performs matrix-matrix multiplication of the form: D=αAB where α is a scalar multiplication factor, A, B, an...
NCSA GPU programming tutorial day 3 Vlad Kindratenko kindr@ncsa.uiuc.edu Tutorial outline • Random facts about NCSA systems, GPUs, and CUDA – QP & Lincoln cluster configurations – Tesla S1070 architecture – Memory alignment for GPU – CUDA APIs • Matrix-matrix multiplication example – K1...