Linking error when compiling C++ source files

[aujjww]

I am compiling a c++ project. When using the c/c++|code generation|basic runtime checks|both (/RTC1, equiv. to /RTCsu), it works well. However, the compiled code runs slowly, a benchmark needs 27.7s, in contrast, another version compiled by microsoft VC++ spent only 13.6s.

If I use c/c++|code generation|basic runtime checks|default, then the following error messages occur:

1>Linking... (Intel C++ Environment)

1>ipo: remark #11000: performing multi-file optimizations

1>ipo: remark #11005: generating object file .\\release.obj

1>ipo-1: remark #11004: starting multi-object compilation

1>ipo-1: remark #11005: generating object file .\\release1.obj

1>ipo-2: remark #11004: starting multi-object compilation

1>ipo-2: remark #11005: generating object file .\\release2.obj

1>xilink: executing 'link'

1>release.obj : error LNK2001:unrecognized external symbol_xdrstdio_putint32

1>release.obj : error LNK2001:unrecognized external symbol _xdrstdio_getuint32

........................

I wander how to optimize the project with IPO correctly.

The correct command line but not optimized is as follows:

/GL /c /O3 /Oi /Qfp_port /Ot /I "..\\..\\..\\FFTW2.1.3.Win32\\fftw" /I "../../lib/atc" /I "../../src/xtc" /I "../../src/user-smd" /I "../../src/user-ewaldn" /I "../../src/user-cg-cmm" /I "../../src/user-ackland" /I "../../src/poems" /I "../../src/peri" /I "../../src/opt" /I "../../src/molecule" /I "../../src/kspace" /I "../../src/granular" /I "../../src/dipole" /I "../../src/colloid" /I "../../src/class2" /I "../../src/asphere" /I "../../src/meam" /I "C:\\Program Files\\MPICH2\\include" /I "../../lib/fftw" /I "./" /I "../../lib/poems" /I "../../src/MAKE/Windows" /I "../../src" /I "../../src/dsmc" /D "_CRT_SECURE_NO_DEPRECATE" /D "MPICH_IGNORE_CXX_SEEK" /D "_X86_" /D "_MBCS" /FD /EHsc /RTC1 /MT /GS /Gy /GR /Fo".\\release\\\\" /W3 /nologo /Zi /Gd /Qfp-speculationfast

Thanks very much

[Yuan_C_Intel]

Hi, aujjww

Thank you for raising this issue. We're interested in reproducing your issue.Could you tell us your compiler version andany small test case to demonstrate the failure?

Thanks

[Om_S_Intel]

Could you please try /Qipo- compiler option?