Sorting arrays with mkl

Enrico — Tue, 15 Oct 2013 17:13:31 GMT

Hello,

I need to sort a double precision array and keep track of the indices, e.g. I need to know where an element in the sorted array was in the unsorted array (or basically I want to replicate the sort command in Matlab). I would like to use the mkl library and for the sole purpose of sorting I found the "dlasrt" subroutine, but I couldn't find anything to keep track of the indices. Is there any subroutine in mkl that will allow me to keep track of the indices? My array might be big, so I would like to avoid having to write a sorting subroutine. I am using fortran.

Thanks

Hello,

Chao_Y_Intel — Wed, 16 Oct 2013 03:23:44 GMT

Hello,

Intel MKL does not have function with the index result. Another Intel library Intel IPP has a similar function:
http://software.intel.com/sites/products/documentation/hpc/ipp/ipps/ipps_ch5/functn_SortRadixIndexAscend.html
IPP functions are the C interface. You need to use C interface to call these function.

Thanks,
Chao

topic Sorting arrays with mkl in Intel® oneAPI Math Kernel Library

Sorting arrays with mkl

Hello,