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Questions - eigen

Eigen Dynamic Matrix with Max-Size at Compile Time: Stack or Heap?

If I declare a matrix via Eigen::Matrix<int,Eigen::Dynamic,Eigen::Dynamic,Eigen::ColMajor,128,128> myMat; will it be allocated on the stack or on the heap? Is there a simple way to force such a...
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Ernest

eigen

Votes: 0

Answers: 0

Run Eigen Parallel with OpenMPI

I am new to Eigen and is writing some simple code to test its performance. I am using a MacBook Pro with M1 Pro chip (I do not know whether the ARM architecture causes the problem). The code is a simp...
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user155860

c++

parallel-processing

eigen

apple-m1

openmpi

Votes: 0

Answers: 1

Latest Answer

You are confusing OpenMPI with OpenMP. The gcc flag -fopenmp enables OpenMP. It is one way to parallelize an application by using special #pragma omp statements in the code. The parallelization happe...
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Sedenion

Why doesn&#39;t Eigen support OpenMP for coefficient-wise operations?

This post along with some tests made it clear Eigen does not apply multiprocessing to coefficient-wise operations, such as cwiseProduct or Array multiplication, although matrix-matrix products can exp...
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Kaiyakha

c++

openmp

eigen

Votes: 0

Answers: 1

Latest Answer

Why doesn't Eigen support OpenMP when it comes to coefficient-wise operations? Is it some sort of a blunder by the developer or are there some specific reasons to avoid multiprocessing for specific o...
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J&#233;r&#244;me Richard

Eigen: broadcasting does not work for right-hand side argument

The Eigen library for matrix operations supports broadcasting to perform row-wise or column-wise operations between a matrix and a vector, e.g. add a column-vector to all columns of a matrix. However,...
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Andre

c++

eigen

Votes: 0

Answers: 0

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