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1answer
68 views

LU Decomposition with memory-mapped matrices

I have a ~4.12 Tb structured relatively-sparse matrix dataset (about 8% of the matrix entries are non-zero) that i want to apply an LU decomposition, however, given the size of it, loading it in ...
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1answer
78 views

Memory management in time-domain simulation

I develop a parallel time-domain DAE simulation software using OpenMP and Fortran 2003. The main algorithm is: ...
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0answers
44 views

Memory errors with GSL ODE solver

I am trying to solve a (large) system of ODEs with GSL solvers. When I use driver method I get an error message of could not allocate space for gsl_interp_accel, ...
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3answers
728 views

Portable multicore/NUMA memory allocation/initialization best practices

When memory bandwidth limited computations are performed in shared memory environments (e.g. threaded via OpenMP, Pthreads, or TBB), there is a dilemma of how to ensure that the memory is correctly ...
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4answers
248 views

(How) do you take into account memory fragmentation?

I use an example from finite element theory, but anybody who maintains a large datastructure and successively extends it will find something similar. Suppose I have an unstructured mesh of points and ...