Unable to link IPP with my program

[prakrati]

The makefile is as follows :

all:
IPPROOT=/homenc/iyaesa4/intel/ipp/6.1.2.051/em64t
gcc ipp1.c -o ipp1.o -I$(IPPROOT)/include/ $(IPPROOT)/lib/libippmmergedem64t.a $(IPPROOT)/lib/libippmemergedem64t.a $(IPPROOT)/lib/libippiemergedem64t.a $(IPPROOT)/lib/libippsemergedem64t.a $(IPPROOT)/lib/libippimergedem64t.a $(IPPROOT)/lib/libippsmergedem64t.a $(IPPROOT)/lib/libirc.a $(IPPROOT)/lib/libsvml.a $(IPPROOT)/lib/libimf.a $(IPPROOT)/lib/libiomp5.a $(IPPROOT)/lib/libippcoreem64t.a -lm -lpthread

The error message is as follows :

/homenc/iyaesa4/intel/ipp/6.1.2.051/em64t/lib/libippmemergedem64t.a(ippm00488.o)(.data+0x0): undefined reference to `mx_ippmAdd_mm_64f'
/homenc/iyaesa4/intel/ipp/6.1.2.051/em64t/lib/libippmemergedem64t.a(ippm00488.o)(.data+0x8): undefined reference to `m7_ippmAdd_mm_64f'
/homenc/iyaesa4/intel/ipp/6.1.2.051/em64t/lib/libippmemergedem64t.a(ippm00488.o)(.data+0x10): undefined reference to `u8_ippmAdd_mm_64f'
/homenc/iyaesa4/intel/ipp/6.1.2.051/em64t/lib/libippmemergedem64t.a(ippm00488.o)(.data+0x18): undefined reference to `y8_ippmAdd_mm_64f'
/homenc/iyaesa4/intel/ipp/6.1.2.051/em64t/lib/libippmemergedem64t.a(ippm00488.o)(.data+0x20): undefined reference to `e9_ippmAdd_mm_64f'
collect2: ld returned 1 exit status
make: *** [all] Error 1

I am using the method 'ippmAdd_mm_64f' for marix-matrix addition.

Kindly help me on this.

Thanks & Regards.

[Vladimir_Dudnik]

Hello,

as far as I know the order of libraries in linker command line does matter for Linux linker. So I would suggest you to change the order of ippm libraries - please try to set first libippmemerged.a and set libippmmerged.a as a second library.

Regards,
Vladimir

[prakrati]

Hello

I tried with all kind of orders but with no success .Please help me

Thanks

[Pavel_B_Intel1]

Hi prakrati!

"emerged" library have to set before corresponded "merged" library, please try this line:

gcc ipp1.c -o ipp1.o -I$(IPPROOT)/include/ $(IPPROOT)/lib/libippmemergedem64t.a $(IPPROOT)/lib/libippmmergedem64t.a $(IPPROOT)/lib/libippiemergedem64t.a $(IPPROOT)/lib/libippimergedem64t.a $(IPPROOT)/lib/libippsemergedem64t.a $(IPPROOT)/lib/libippsmergedem64t.a $(IPPROOT)/lib/libirc.a $(IPPROOT)/lib/libsvml.a $(IPPROOT)/lib/libimf.a $(IPPROOT)/lib/libiomp5.a $(IPPROOT)/lib/libippcoreem64t.a -lm -lpthread

It should work

Pavel

[Naveen_G_Intel]

Hi,

Pavel is right, we are also mentioned same in the Simplified Link Instructions for the IPP Library article.

the order of the link list is important for static libraries in a Linux environment, since many of the linkers used in this environment default to operating in a single-pass mode. In this case it is best to order the library files according to the following rule: *emerged.a first, followed by *merged.a and ending with ippcore.a.

Regards,

Naveen Gv