topic can't get simple ipp example to work in Intel® Integrated Performance Primitives

can't get simple ipp example to work

Phil_Stimac — Fri, 08 Jan 2010 21:07:46 GMT

I am completely new to using IPP and c++ and I need a hint on how to get a simple example to work. Below is the c++ code I would like to get working. Following that is the error message that I get. I thought all the environmental variable and such were set by including this in my .bashrc file: source /opt/intel/Compiler/11.1/064/ipp/em64t/tools/env/ippvarsem64t.sh
I have the Intel C++ 11.1 professional version for linux (rhel 5.2) installed and have checked that the ipp stuff works by running the scripts in perfsys.

Any help would be greatly appreciated! Many thanks.

______________________________________
#include "ipp.h"

using namespace std;

void func_autocorr();

int main ()
{
ippStaticInit();
func_autocorr();
return 0;
}

void func_autocorr()

{
Ipp32f pSrc[5] = {0.2, 3.1, 2.0, 1.2, -1.1};
const int dstLen = 10;
Ipp32f pDst[dstLen];
ippsAutoCorr_NormB_32f(pSrc, 5, pDst, dstLen);
}
_______________________________________

Here is the error that I get:

/tmp/icc56FrxX.o: In function `main':
walker.cpp:(.text+0x29): undefined reference to `ippStaticInit'
walker.cpp:(.text+0x69): undefined reference to `ippsAutoCorr_NormB_32f'
/tmp/icc56FrxX.o: In function `func_autocorr()':
walker.cpp:(.text+0xc0): undefined reference to `ippsAutoCorr_NormB_32f'

Re: can't get simple ipp example to work

Phil_Stimac — Fri, 08 Jan 2010 23:00:44 GMT

Quoting - Phil Stimac

I am completely new to using IPP and c++ and I need a hint on how to get a simple example to work. Below is the c++ code I would like to get working. Following that is the error message that I get. I thought all the environmental variable and such were set by including this in my .bashrc file: source /opt/intel/Compiler/11.1/064/ipp/em64t/tools/env/ippvarsem64t.sh
I have the Intel C++ 11.1 professional version for linux (rhel 5.2) installed and have checked that the ipp stuff works by running the scripts in perfsys.

Any help would be greatly appreciated! Many thanks.

______________________________________
#include "ipp.h"

using namespace std;

void func_autocorr();

int main ()
{
ippStaticInit();
func_autocorr();
return 0;
}

void func_autocorr()

{
Ipp32f pSrc[5] = {0.2, 3.1, 2.0, 1.2, -1.1};
const int dstLen = 10;
Ipp32f pDst[dstLen];
ippsAutoCorr_NormB_32f(pSrc, 5, pDst, dstLen);
}
_______________________________________

Here is the error that I get:

/tmp/icc56FrxX.o: In function `main':
walker.cpp:(.text+0x29): undefined reference to `ippStaticInit'
walker.cpp:(.text+0x69): undefined reference to `ippsAutoCorr_NormB_32f'
/tmp/icc56FrxX.o: In function `func_autocorr()':
walker.cpp:(.text+0xc0): undefined reference to `ippsAutoCorr_NormB_32f'

OK, we figured this out. I was not linking to the necessary libraries during compile time. Thanks.

Re: can't get simple ipp example to work

PaulF_IntelCorp — Fri, 08 Jan 2010 23:52:31 GMT

Phil,

Glad you found the problem. I was about to write a reply when you posted yours. The part that was confusing me was a lack of error regarding ipp.h. I was thinking about the compiler, not the linker...

Paul