OSKI Autotuning Sparse Matrix KernelsDemmel, JimVuduc, Rich
1. 有些学校以 Turbo C 为环境讲 C 语言,只是 Turbo C 的环境实在太老了,复制粘贴都很不方便。 2. 有些学校直接拿 VC 来讲 C 语言,因为 VC 的编辑和调试环境都很优秀,并且 VC 有适合教学的免费版本。可惜在 VC 下只能做一些文字性的练习题,想画条直线画个圆都很难,还要注册窗口类、建消息循环等等,...
sparse matrix codesCRAY-1gaussian eliminationfrontal methodsindirect addressing/ B0290H Linear algebra (numerical analysis) C4140 Linear algebra (numerical analysis)We consider direct methods based on Gaussian elimination for solving sparse sets of linear equations. Among conventional approaches, band and ...
Output matrix, returned as a sparse matrix. Limitations If any of the inputsi,jorm,nare larger than2^31-1for 32-bit platforms, or2^48-1on 64-bit platforms, then the sparse matrix cannot be constructed. Tips MATLAB®stores sparse matrices in compressed sparse column format. For more infor...
If unsuccessful in a MEX file, the MEX file terminates and returns control to the MATLAB® prompt. The function is unsuccessful when there is not enough free heap space to create the mxArray. Description Use mxCreateSparseLogicalMatrix to create an m-by-n mxArray of mxLogical elements. ...
稀疏矩阵(THE SPARSE MATRIX) 0x00 ADT 稀疏矩阵:若矩阵 中 非零元素的个数远小于零元素的个数,我们称 为稀疏矩阵 如果用一个二维数组来表示稀疏矩阵,就要用大量的空间来存储相同的值(0),不仅如此,当矩阵很大时,这种实现方式是行不通的,因为大多数编译器对数组的大小都有限制的。
Complete the host code for creating JDS–ELL and launch one kernel for each section of the representation. 3. Consider the following sparse matrix: 1 0 7 0 0 0 8 0 0 4 3 0 2 0 0 1 Represent the matrix in each of the following formats: (a) COO, (b) CSR, and (c) ELL. 4....
C = sparse(i,j,s) C = 5×5 sparse double matrix (13 nonzeros) (1,1) 4 (5,1) 1 (2,2) 4 (5,2) 1 (3,3) 4 (5,3) 1 (4,4) 4 (5,4) 1 (1,5) -1 (2,5) -1 (3,5) -1 (4,5) -1 (5,5) 4 The ordering of the values in the output reflects the underlyi...
Matrix-Vector multiplication Number of columns in the matrix has to be the same as the size of the vector, otherwiseInvalidDimensionsExceptionis thrown. SparseMatrix::SparseMatrix<int>mat(4,5); std::vector<int>vec(5,2); std::vector<int> result; result = mat.multiply(vec);//methodresult ...
withr::with_makevars(new=c(CXX14="g++",CXX14FLAGS="-g -O2 $(LTO)",CXX14PICFLAGS="-fpic",CXX14STD="-std=gnu++14"),code={BiocManager::install("sparseMatrixStats") }) One of the main culprits causing trouble is CentOS 7. It is popular in scientific computing and is still support...