topic printf_32f error in Intel® Integrated Performance Primitives

printf_32f error

Knoght — Thu, 20 May 2010 14:56:45 GMT

I'm trying to use IPP (eval for 30 days).

I used this example for FFT:

Ipp32f x[8], X[10];
int n;

IppStatus status;
IppsFFTSpec_R_32f* spec;

status = ippsFFTInitAlloc_R_32f (&spec, 3, IPP_FFT_DIV_INV_BY_N, ippAlgHintNone);
for (n=0; n<8; ++n) x = (float)cos(IPP_2PI *n *16/64);

status = ippsFFTFwd_RToCCS_32f (x, X, spec, NULL);
ippsMagnitude_32fc ((Ipp32fc*)X, x, 4);

ippsFFTFree_R_32f (spec);

printf_32f("fft magn=", x, 4, status);

return status;

All is ok if I comment "printf_32f(...)". I haven't used this function since now, but i can't find anything about on the net. I'm using an i7-720QM so I'm using "IPP for Intel 64 Architecture", I've linked all possible .lib but "printf_32f(...) is a "unrecognised symbol".

What's my mistake?

Thanks and sorry for my bad english :)

printf_32f error

Vladimir_Dudnik — Thu, 20 May 2010 20:47:00 GMT

It seems you copied that piece of code from documentation? Obviously printf_32f is some wrapper on top of usual C run time printf functions which output to console floating point values. The realization of that should be somewhere in documentation from where you copied the code

You also can substitute that call with your realization which may output to console array of FP values.

Regards,
Vladimir

printf_32f error

Knoght — Thu, 20 May 2010 21:05:03 GMT

You are right, I've copied the code from documentation. I suppose printf_32f() was on library, now I'm looking for it in documentation. Thank to give me an indication, for me it's very important because I'm alone here :P

If I can't find, I'll tell you. Can I?

Thank you Vladimir.

printf_32f error

Vladimir_Dudnik — Thu, 20 May 2010 21:12:09 GMT

Sure! That's why we maintain that forum isn't it?

BTW, if there is no that function in documentation (by mistake for example) you can use any technique you know to dump array of FP values to console.

Regards,
Vladimir

printf_32f error

Knoght — Thu, 20 May 2010 21:35:34 GMT

Yep, all ok here. I made a realization of printf_32f and works fine. It's the proof that I was in panic :) (29 days left) :P

Thank you again :)

printf_32f error

Vladimir_Dudnik — Thu, 20 May 2010 21:43:52 GMT

Do not be in panic with 30 day evaluation period. There is no time bomb in IPP, it still be fully functional out of evaluation period. During30 days evaluation you will have technical support and you may contactIntel Premier Supportchannel in case you need longer evaluation period

Regards,
Vladimir