topic Vector - Scalar operation in Intel® oneAPI Math Kernel Library

Vector - Scalar operation

gottoomanyaccounts — Thu, 05 Mar 2009 17:36:12 GMT

Hello,

I am wondering if MKL provides operations like y=a+r, where y and a are vectors, while r is a real scalar. It essentially adds the scalar r to every element of a.

Thanks a lot.

Re: Vector - Scalar operation

Gennady_F_Intel — Thu, 05 Mar 2009 19:01:54 GMT

Yes, MKL doesnt provide such operations,
but I d recommend you draw attention on IPP ( Intel Integrating Primitives, see the link on IPP: http://www3.intel.com/cd/software/products/asmo-na/eng/perflib/ipp/302910.htm)

IPP support such operations.
See the short description below:
Arithmetic Functions
This section describes the Intel IPP signal processing functions that perform vector arithmetic operations on vectors. The arithmetic functions include basic element-wise arithmetic operations between vectors, as well as more complex calculations such as computing absolute values, square and square root, natural logarithm and exponential of vector elements.
Intel IPP software provides two versions of each function. One version performs the operation in-place, while the other stores the results of the operation in a different destination vector, that is, executes an out-of-place operation.
AddC

Adds a constant value to each element of a vector
Case 1. Not-in-place operations on floating point data.
Case 2. Not-in-place operations on integer data.
Case 3. In-place operations on floating point data.
Case 4. In-place operations on integer data.

Regards, Gennady

Re: Vector - Scalar operation

gottoomanyaccounts — Thu, 05 Mar 2009 22:14:46 GMT

Quoting - Gennady Fedorov (Intel)

Re: Vector - Scalar operation

Gennady_F_Intel — Fri, 06 Mar 2009 05:50:03 GMT

1. IPP is available as a standalone package and as a part of the latest Intel C/C++ Compiler (since version 11). For general information on support for Intel software products, visit the Intel web site http://developer.intel.com/software/products/ or on Intel IPP Website - http://www.intel.com/software/products/IPP contains releases information
2. I think in your case to write the plain subroutine and compile it by Intel Compiler is the fastest and probably the best way (in this specific case)to reach very high performance, because of Intel compiler supports a variety of options and features that allow optimization opportunities;
--Gennady

Can't you use v?LinearFrac

Venkat_Konuganti — Wed, 20 May 2015 18:06:32 GMT

Can't you use v?LinearFrac