Sorting arrays with mkl

Sorting arrays with mkl

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

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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...
IPP functions are the C interface. You need to use C interface to call these function.

Thanks,
Chao

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