topic Error while loading IppSP libraries in Intel® Integrated Performance Primitives

Error while loading IppSP libraries

gregorio_chindamo — Wed, 16 Nov 2011 12:54:08 GMT

Hi,

I am evaluating the IPP 7.0 version and trying to speed up the execution time of my applications.

Currently, I am runningone of themwhich is using header files as below:

ipp.h
ipps.h
ippcore.h

and Iwant to have a dynamic linking.

I linked the following libs:

ippcore.lib,
ipps.lib

and I am using the complete IPP CPU specific libraries suiteat run time including:

ippcore-7.0.dll
ipps-7.0.dll
libiomp5md.dll

The applications works fine on my machine (which has an Intel Xeon E31245 CPU)where 7.0 IPP is installed, but when I copy the exe and dlls on toanothermachine (which has a Mobile Intel Celeron CPU)and start it, it throws an error saying "Error at loading of IppSP library. No DLLs were found in the waterfall procedure".

Could you please let me know if I am missing something? Does IPP 7.0 support the Intel Mobile Celeron CPU?

Thanks very much in advance.

Best Regards,

Gregorio Chindamo

Error while loading IppSP libraries

Vladimir_D_Intel1 — Tue, 22 Nov 2011 16:26:12 GMT

Hi Gregorio,

the DLLs you listed are not cpu-specific libraries. In order your application work on another system you also need ippsXX-7.0.dll (where XX is two character code of cpu specific implementation).

Note, IPP provides cpu-specific libraries only for functional domain libraries (like signal processing 'ipps' or image processing 'ippi'). The core library and OpenMP runtime library don't have cpu-specific implementation.

Regards,
Vladimir

Error while loading IppSP libraries

Ying_H_Intel — Thu, 24 Nov 2011 03:00:25 GMT

Hi Gregorio,

Here is IPPKB article for you reference, http://software.intel.com/en-us/articles/intel-integrated-performance-primitives-intel-ipp-understanding-cpu-optimized-code-used-in-intel-ipp/

IA-32	px	C optimized for all IA-32 processors	i386+
	a6	SSE	Pentium III	thru 5.3 only
	w7	SSE2	P4, Xeon, Centrino
	t7	SSE3	Prescott, Yonah
	v8	Supplemental SSE3	Core 2, Xeon 5100, Atom
	s8	Supplemental SSE3 (compiled for Atom)	Atom	new in 6.0
	p8	SSE4.1, SSE4.2, AES-NI	Penryn, Nehalem, Westmere	see notes below
	g9	AVX	Sandy Bridge architecture	new in 6.1
Intel 64 (EM64T)	mx	C-optimized for all Intel 64 platforms	P4	SSE2 minimum
	m7	SSE3	Prescott
	u8	Supplemental SSE3	Core 2, Xeon 5100, Atom
	n8	Supplemental SSE3 (compiled for Atom)	Atom	new in 6.0
	y8	SSE4.1, SSE4.2, AES-NI	Penryn, Nehalem, Westmere	see notes below
	e9	AVX	Sandy Bridge architecture	new in 6.

So you may need distribute cpu-specific library likeippiw7-7.0.dll ippiv8-7.0.dll etc with ippi-7.0.dll also.

Regards,
Ying

Error while loading IppSP libraries

SergeyKostrov — Thu, 24 Nov 2011 04:30:28 GMT

Ying,

I checked the article and I don't see any support for Intel Mobile Celeron CPU. Or I missed it?

So, the question remains open and I hope thateverybody is interested to get an exact answer on the question:

Does IPP 7.0 support the Intel Mobile Celeron CPU?

Please, answer ( or confirm )Yes or No.

Thank you in advance.

Best regards,
Sergey

Error while loading IppSP libraries

Ying_H_Intel — Thu, 24 Nov 2011 05:52:06 GMT

Hi Sergey,

Thanks for reminder. Sure, I add more.

Let's first define "suport", wecan say, support means thatIPP 7.0based application (32bit or64bit)can run onthe machinewithsupported OS. Please See IPPsystem requirements

Intel IPP 7.0 System Requirements

Then Yes, IPP 7.0 support the Intel Moblile Celeron CPU with supportes OS.

Actually,Intel IPPsupporta system with an IA-32/Intel 64architecture processor supporting the Intel Streaming SIMD Extensions.

and the CPU-specific dispatcherarebased on SIMD capabilities, So there is not limited with processor type, either Moblile Celeron CPU, Celeron Destop, Core 2 Duoprocessor.
http://software.intel.com/en-us/articles/understanding-simd-optimization-layers-and-dispatching-in-the-intel-ipp-70-library/

User may find the exact cpu-specifed dll supported on the machine by IPP cpuinfo sample in

Download the Intel IPP Code Samples

Best Regards,
Ying

Error while loading IppSP libraries

igorastakhov — Thu, 24 Nov 2011 12:55:39 GMT

Hi All,

I've already answered this question: IPP 7.0.x supports only SSE2 and higher CPUs. See http://software.intel.com/en-us/forums/showthread.php?t=101206

Regards,
Igor

Error while loading IppSP libraries

SergeyKostrov — Thu, 24 Nov 2011 15:00:18 GMT

Hi Igor, Thank you!

I wouldaddan additional identifier ippCpuUnsupportedtothe enumeration IppCpuType:

typedef enum
{

ippCpuUnknown= 0x00,
...
ippCpuUnsupported = 0xFF

} IppCpuType;

and if a CPU is not supportedreturn the value when IppCoreGetCpuType( ... ) function is called.

Best regards,
Sergey

PS: Of course, ippCpuUnknown also could be used but I think thatsomeCPU could be "Known" but "Not Supported".

Error while loading IppSP libraries

igorastakhov — Fri, 25 Nov 2011 07:37:30 GMT

Hi Sergey,
sounds reasonable, will be implemented.

Regards,
Igor