Hello.
I downloaded "l_ipp_7.1.1.117_intel64". I installed them. But when i tried to used this library with example from "User's Guide" - "Building your first application" - i had Errors: undefined reference to 'ipplnit', 'ippiGetLibVersion', 'ippGetEnableCpuFeatures'.
I did this in QT qreator 2.6.0. How i could include libraries right?
P.S. Sorry for my poor english and knowlege.
#include "ipp.h"
#include <stdio.h>
int main(int argc, char* argv[])
{
const IppLibraryVersion *lib;
Ipp64u fm;
ippInit();
//Automatic best static dispatch
//ippInitCpu(ippCpuSSSE3);
//Select a specific static library level
//Can be useful for debugging/profiling
//Get version info
lib = ippiGetLibVersion();
printf("%s %s\n", lib->Name, lib->Version);
//Get CPU features enabled with selected library level
fm=ippGetEnabledCpuFeatures();
printf("SSE2 %c\n",(fm>>2)&1?'Y':'N');
printf("SSE3 %c\n",(fm>>3)&1?'Y':'N');
printf("SSSE3 %c\n",(fm>>4)&1?'Y':'N');
printf("SSE41 %c\n",(fm>>6)&1?'Y':'N');
printf("SSE42 %c\n",(fm>>7)&1?'Y':'N');
printf("AVX %c OS Enabled %c\n", (fm>>8)&1 ?'Y':'N', (fm>>9)&1 ?'Y':'N');
printf("AES %c CLMUL %c\n", (fm>>10)&1?'Y':'N', (fm>>11)&1?'Y':'N');
return 0;
}
链接已复制
Ivan,
Look at the forum post (http://www.qtforum.org/article/32888/linking-libraries-in-qt-creator.html?s=68ffa6e4aa4639cbfbe3f25fee0277caf28978fb#post106006). It contains some hints regarding adding external libraries to Qt project.
Note, that IPP libraries are Visual Studio-style. The name of functions in the library files are Microsoft's "__stdcall" type, i.e. "_" added at the beginning of the name and "@<number>" is added to the end.
Regards,
Sergey
Oops, sorry! You are asking about Linux. Try this then (http://stackoverflow.com/questions/9563747/how-to-add-multiple-external-libraries-to-qt-creator-pro-ubuntu)
Hello! I have Error " undefined reference to `ippiSet_8u_C1R' ", and how i understand i have to do step 3 for solution, but:
I have problems with Step 3 (l_ipp_7.1.1.117_intel64). I found /opt/intel/ipp/bin/ippvars.sh and /opt/intel/ipp/bin/intel64/ippvars_intel64.sh but a Terminal wrote that both of them "can't open".
This is what you want?
14:22:20: Выполняются этапы для проекта untitled1...
14:22:20: Настройки не изменились, этап qmake пропускается.
14:22:20: Запускается: «/usr/bin/make» -w
make: Entering directory `/home/ivan/untitled1-build-desktop-Qt_4_8_3___PATH___________________'
g++ -Wl,-O1 -o untitled1 main.o
main.o: In function `main':
main.cpp:(.text.startup+0x4f): undefined reference to `ippiSet_8u_C1R'
collect2: error: ld returned 1 exit status
make: Leaving directory `/home/ivan/untitled1-build-desktop-Qt_4_8_3___PATH___________________'
make: *** [untitled1] Error 1
14:22:20: Процесс «/usr/bin/make» завершился с кодом 2.
Возникла ошибка при сборке/установке проекта untitled1 (цель: Desktop)
Во время выполнения этапа «Сборка»
Hello!
I've Got nerely the same problem. I've installed Intel C++ composer for Linux. But I can't launch ipp libraries. Got the same error, found the article, provided here, but in the Common error messages it is written that I should run the gcc compiler like
gcc -o main main.c -I <ipp install path>/em64t/include -L <ipp install path>/em64t/sharedlib -lippiem64t -lippsem64t -lippcoreem64t -liomp5 -lpthread -lm
but I haven't found neither the directories mentioned nor the libraries. Maybe this manual is for the older versions of ipp, or maybe I've installed them in a wrong way?
Hi Oleg,
"-I " command line options should point to IPP include directory, "-L" should point to IPP library (architecture-specific) directory - i.e. ia32/intel64, depending on where you have IPP installed. By the way, "em64t" is not used since IPP 6.1. Now it is "intel64". Tell what version of Composer/IPP do you use, we'll check the documentation additionally.
Regards,
Sergey
Thank you, Sergey.
I've recently downloaded the 2013 composer and now I'm trying to work with it. I'll try launching the libraries as you recomended.
By the way, could you, please, give me a link on some manual for Intel Linux compiler, becuase I can't launch any "man" for it.
Thank you.
Hi Oleg,
"-L" (upper case L) in Linux defines the library directory where the linker will search for particular libraries specified by "-l" (lower case L) option.
If I had to link my application I would specify "-L /opt/intel/composer_xe_2013/ipp/lib/intel64".
For compiler I would set "-I /opt/intel/composer_xe_2013/ipp/include". This is because on server where I am hosted the composer is installed in "/opt/intel/composer_xe_2013". In your case it may be different, but anyway "/ipp/include" and "/ipp/lib/intel64" tails are the same.
Regards,
Sergey
Thank you once again, but I've met another problem after using a command like this:
g++ main.cpp -o main -l /opt/intel/composer_xe_2013.2.146/ipp/include -L /opt/intel/composer_xe_2013.2.146/ipp/lib/intel64
i got:
/usr/bin/ld: cannot find -l/opt/intel/composer_xe_2013.2.146/ipp/include
It's some kind of magic :) Or, maybe I don't understand something...
Thank you, anyway.
This is a common problem of similarity of "-l" (lowercase L) and "-I" (uppercase i). Unfortunately they look similar. Uppercase i is an option for compiler to look for .h files. Lowercase L is an option for linker to link with specified library. For example, "-l pthread" (again, -<lowercase L> pthread :)) makes linker to link with "libpthread.a" library.
Regards,
Sergey
Exactly, I've tryed both of them :)
When I use lower "L" I get /usr/bin/ld: cannot find -l/opt/intel/composer_xe_2013.2.146/ipp/include
When i use upper "i" I get:
/tmp/cccPZpZ2.o: In function `main':
main.cpp:(.text+0x6b): undefined reference to `ippiSet_8u_C1R'
This is where magic lives :)
Then, you need to add signal processing library (IPPS) to linker command line:
... -l ipps_l (lowercase L)
to link to libipps_l.a (merged static single-thread library). "Merged" means all CPUs optimizations in one library. Or, you can use:
... -l ipps
to link to dynamic (libipps.so) library.
As I understand, I need to write something like this:
g++ main.cpp -o main -I(i) /opt/intel/composer_xe_2013.2.146/ipp/include -l(L) ipps -L /opt/intel/composer_xe_2013.2.146/ipp/lib/intel64
or
g++ main.cpp -o main -I(i) /opt/intel/composer_xe_2013.2.146/ipp/include -l(L) ipps_l -L /opt/intel/composer_xe_2013.2.146/ipp/lib/intel64
Then the first choice gives:
/usr/bin/ld: warning: libippcore.so.7.1, needed by /opt/intel/composer_xe_2013.2.146/ipp/lib/intel64/libipps.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libiomp5.so, needed by /opt/intel/composer_xe_2013.2.146/ipp/lib/intel64/libipps.so, not found (try using -rpath or -rpath-link)
/tmp/ccKkNyWo.o: In function `main':
main.cpp:(.text+0x6b): undefined reference to `ippiSet_8u_C1R'
/opt/intel/composer_xe_2013.2.146/ipp/lib/intel64/libipps.so: undefined reference to `ownRegisterLib'
/opt/intel/composer_xe_2013.2.146/ipp/lib/intel64/libipps.so: undefined reference to `ippMessageCatalogOpenI18n'
/opt/intel/composer_xe_2013.2.146/ipp/lib/intel64/libipps.so: undefined reference to `ippIsCpuEnabled'
/opt/intel/composer_xe_2013.2.146/ipp/lib/intel64/libipps.so: undefined reference to `ippGetMessageStatusI18n'
/opt/intel/composer_xe_2013.2.146/ipp/lib/intel64/libipps.so: undefined reference to `ippMessageCatalogCloseI18n'
/opt/intel/composer_xe_2013.2.146/ipp/lib/intel64/libipps.so: undefined reference to `ippSetCpuFeaturesMask'
/opt/intel/composer_xe_2013.2.146/ipp/lib/intel64/libipps.so: undefined reference to `ippGetCpuFeatures'
/opt/intel/composer_xe_2013.2.146/ipp/lib/intel64/libipps.so: undefined reference to `ownUnregisterLib'
And the second one:
/tmp/ccmI0RSZ.o: In function `main':
main.cpp:(.text+0x6b): undefined reference to `ippiSet_8u_C1R'
