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I've recently changed the core mathematical libraries we use from the Netlib versions of BLAS and LAPACK to the MKL versions. This has been going fine until I tried to link a Fortran binary to these libraries. During the linking there are a whole load of unresolved externals that relate to mathematical intrinsic Fortran functions such as SIN, COS and EXP. I don't understand how this should be related to the change of BLAS and LAPACK libraries.
The list of errors is:
Error 46 error LNK2001: unresolved external symbol _sinf aero F.lib(adatin.obj)
Error 15 error LNK2019: unresolved external symbol _powf referenced in function _L_ADATPUT_CIRCULATIONCONTROL aero F.lib(adatput.obj)
Error 10 error LNK2001: unresolved external symbol _powf aero F.lib(aerofl.obj)
Error 23 error LNK2001: unresolved external symbol _sinf aero F.lib(aerofl.obj)
Error 5 error LNK2001: unresolved external symbol ___powr4i4 aero F.lib(aeroit.obj)
Error 28 error LNK2001: unresolved external symbol _sinf aero F.lib(aeroit.obj)
Error 54 error LNK2001: unresolved external symbol _tanf aero F.lib(aeroit.obj)
Error 3 error LNK2019: unresolved external symbol ___powr4i4 referenced in function _CALC_I aero F.lib(calc_I.obj)
Error 22 error LNK2001: unresolved external symbol _sinf aero F.lib(dystal.obj)
Error 58 error LNK2001: unresolved external symbol _expf aero F.lib(dystal.obj)
Error 25 error LNK2001: unresolved external symbol _sinf aero F.lib(findf.obj)
Error 24 error LNK2001: unresolved external symbol _sinf aero F.lib(foilcon.obj)
Error 9 error LNK2001: unresolved external symbol _powf aero F.lib(forpul.obj)
Error 29 error LNK2001: unresolved external symbol _sinf aero F.lib(forpul.obj)
Error 59 error LNK2001: unresolved external symbol _expf aero F.lib(prantl.obj)
Error 76 error LNK2019: unresolved external symbol _acosf referenced in function _PRANTL aero F.lib(prantl.obj)
Error 27 error LNK2001: unresolved external symbol _sinf aero F.lib(tipsr.obj)
Error 51 error LNK2001: unresolved external symbol _tanf aero F.lib(vortind.obj)
Error 57 error LNK2001: unresolved external symbol _expf control F.lib(brake.obj)
Error 8 error LNK2001: unresolved external symbol _powf control F.lib(YawActuator.obj)
Error 26 error LNK2001: unresolved external symbol _sinf control F.lib(YawActuator.obj)
Error 2 error LNK2001: unresolved external symbol _log10f dcon F.lib(todiscon.obj)
Error 79 fatal error LNK1120: 14 unresolved externals C:\Alpha\Bladed\Main\Source\Output/x86/Debug\dtbladed.exe
Error 55 error LNK2019: unresolved external symbol _f_pow2i referenced in function _L_EOM_GEN_BRAKE_STATUS dyn_sim F.lib(eom_gen_functions.obj)
Error 39 error LNK2001: unresolved external symbol _sinf gener F.lib(gener.obj)
Error 52 error LNK2001: unresolved external symbol _tanf gener F.lib(gmod2_in.obj)
Error 18 error LNK2001: unresolved external symbol _powf gener F.lib(GMOD4.obj)
Error 17 error LNK2001: unresolved external symbol _powf gener F.lib(gmod4_in.obj)
Error 40 error LNK2001: unresolved external symbol _sinf gener F.lib(vsgrid.obj)
Error 73 error LNK2001: unresolved external symbol ___powr8i4 general F.lib(dqnc79.obj)
Error 1 error LNK2019: unresolved external symbol _log10f referenced in function _WRITEENCRYPTIONGROUPS ghcom F.lib(crypt_in.obj)
Error 49 error LNK2001: unresolved external symbol _sinf multibody F.lib(ActiveDampers.obj)
Error 42 error LNK2001: unresolved external symbol _sinf multibody F.lib(AppliedLoads.obj)
Error 38 error LNK2001: unresolved external symbol _sinf multibody F.lib(BladeOutput.obj)
Error 47 error LNK2001: unresolved external symbol _sinf multibody F.lib(ConvertBladeToMB.obj)
Error 45 error LNK2001: unresolved external symbol _sinf multibody F.lib(LoadsForDiscon.obj)
Error 43 error LNK2001: unresolved external symbol _sinf multibody F.lib(MultibodyOutput.obj)
Error 48 error LNK2001: unresolved external symbol _sinf multibody F.lib(MultibodySetup.obj)
Error 44 error LNK2001: unresolved external symbol _sinf multibody F.lib(UpdateMultibodyArrays.obj)
Error 19 error LNK2001: unresolved external symbol _sinf rotor F.lib(f_ptc.obj)
Error 50 error LNK2019: unresolved external symbol _tanf referenced in function _F_PTC rotor F.lib(f_ptc.obj)
Error 77 error LNK2001: unresolved external symbol _acosf rotor F.lib(f_ptc.obj)
Error 20 error LNK2001: unresolved external symbol _sinf rotor F.lib(pointpos.obj)
Error 6 error LNK2001: unresolved external symbol _powf rotor F.lib(teetrs.obj)
Error 60 error LNK2001: unresolved external symbol _expf rotor F.lib(teetrs.obj)
Error 16 error LNK2001: unresolved external symbol _powf rotor F.lib(tmod2_in.obj)
Error 74 error LNK2019: unresolved external symbol ___libm_sse2_sincosf referenced in function _TAILVANE struct F.lib(tailvane.obj)
Error 75 error LNK2019: unresolved external symbol ___libm_sse2_atan2f referenced in function _TAILVANE struct F.lib(tailvane.obj)
Error 41 error LNK2019: unresolved external symbol _sinf referenced in function _TGEOMIN tower F.lib(tgeomin.obj)
Error 21 error LNK2001: unresolved external symbol _sinf tower F.lib(TowShadow.obj)
Error 78 error LNK2019: unresolved external symbol _asinf referenced in function _TOWSHADOW tower F.lib(TowShadow.obj)
Error 70 error LNK2001: unresolved external symbol _tanhf waves F.lib(calc_k.obj)
Error 71 error LNK2001: unresolved external symbol _tanhf waves F.lib(calcfcut.obj)
Error 68 error LNK2001: unresolved external symbol _expf waves F.lib(chaplin.obj)
Error 72 error LNK2019: unresolved external symbol ___powr8i4 referenced in function _GETQ waves F.lib(chaplin.obj)
Error 35 error LNK2001: unresolved external symbol _sinf waves F.lib(curr_put.obj)
Error 11 error LNK2001: unresolved external symbol _powf waves F.lib(currents.obj)
Error 36 error LNK2001: unresolved external symbol _sinf waves F.lib(currents.obj)
Error 66 error LNK2001: unresolved external symbol _expf waves F.lib(currents.obj)
Error 53 error LNK2001: unresolved external symbol _tanf waves F.lib(Currntin.obj)
Error 12 error LNK2001: unresolved external symbol _powf waves F.lib(jonswap.obj)
Error 67 error LNK2001: unresolved external symbol _expf waves F.lib(jonswap.obj)
Error 30 error LNK2001: unresolved external symbol _sinf waves F.lib(reg_airy.obj)
Error 61 error LNK2001: unresolved external symbol _expf waves F.lib(reg_airy.obj)
Error 37 error LNK2001: unresolved external symbol _sinf waves F.lib(seastate_xyz.obj)
Error 4 error LNK2001: unresolved external symbol ___powr4i4 waves F.lib(wave_put.obj)
Error 34 error LNK2001: unresolved external symbol _sinf waves F.lib(wave_put.obj)
Error 56 error LNK2019: unresolved external symbol _sinhf referenced in function _WAVE_PUT waves F.lib(wave_put.obj)
Error 65 error LNK2019: unresolved external symbol _expf referenced in function _WAVE_PUT waves F.lib(wave_put.obj)
Error 69 error LNK2019: unresolved external symbol _tanhf referenced in function _WAVE_PUT waves F.lib(wave_put.obj)
Error 33 error LNK2001: unresolved external symbol _sinf wind F.lib(havsine.obj)
Error 13 error LNK2001: unresolved external symbol _powf wind F.lib(mevwake.obj)
Error 63 error LNK2001: unresolved external symbol _expf wind F.lib(mevwake.obj)
Error 14 error LNK2001: unresolved external symbol _powf wind F.lib(SpectralWind.obj)
Error 32 error LNK2001: unresolved external symbol _sinf wind F.lib(SpectralWind.obj)
Error 64 error LNK2001: unresolved external symbol _expf wind F.lib(SpectralWind.obj)
Error 62 error LNK2001: unresolved external symbol _expf wind F.lib(windp.obj)
Error 31 error LNK2001: unresolved external symbol _sinf wind F.lib(windsel.obj)
Error 7 error LNK2001: unresolved external symbol _powf wind F.lib(windv.obj)
And the link command line is (I am compiling in debug):
/OUT:"C:\Alpha\Bladed\Main\Source\Output/x86/Debug\dtbladed.exe" /INCREMENTAL /NOLOGO /LIBPATH:"C:\Alpha\Bladed\Main\Source\Output\x86\Debug\\" /LIBPATH:"C:\Alpha\Bladed\Main\Source\\..\External\Intel Fortran 2013\mkl\ia32" /LIBPATH:"C:\Alpha\Bladed\Main\Source\\..\External\boost 1.55\lib\Debug" /LIBPATH:"C:\Alpha\Bladed\Main\Source\../External/GH/Dongle/Bladed/Lib/x86/Debug" /LIBPATH:"c:\dtExternal\OpenSSL\lib\VC12\x86\\" /LIBPATH:"c:\dtExternal\OpenSSL\lib\VC12\x86" /LIBPATH:"c:\dtExternal\Xerces\lib\VC12\x86\static" /LIBPATH:"c:\dtExternal\Xsec\lib\VC12\x86" /LIBPATH:"C:\Alpha\Bladed\Main\Source\../External/GH/Dongle/Bladed/Lib/x86/Debug" /NODEFAULTLIB:"LIBCMTD" /NODEFAULTLIB:"LIBMMDD" /MANIFEST /MANIFESTFILE:"C:\Alpha\Bladed\Main\Source\Output/x86/Debug\dtbladed.exe.intermediate.manifest" /MANIFESTUAC:"level='asInvoker' uiAccess='false'" /DEBUG /PDB:"C:\Alpha\Bladed\Main\Source\Output/x86/Debug\dtbladed.pdb" /SUBSYSTEM:CONSOLE /IMPLIB:"C:\Alpha\Bladed\Main\Source\Output/x86/Debug\dtbladed.lib" libifcoremd.lib GH.Wolverine.Native.Services.lib kernel32.lib user32.lib gdi32.lib advapi32.lib Version.lib shell32.lib GH.Common.HASP.API.C.55600.lib libeay32d.lib ssleay32d.lib xerces-c_3d.lib xsec_1_6d.lib mkl_core.lib mkl_intel_c.lib mkl_sequential.lib mkl_blas95.lib /NODEFAULTLIB:msvcrt.lib /verbose:lib
Thanks in advance
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Your problem doesn't appear to be related to blas and lapack. I'm not doing well at guessing the missing parts of your link command quotation (is it so big that parts are being dropped, including which tool is performing the link?). It does appear that your link doesn't refer to the basic math library.
Were your Fortran libraries built with a different compiler than you are using currently? For example, it would be difficult to use MKL if you built libraries with a mingw Fortran. If any Fortran compiler other than ifort or possibly CVF is involved, the question isn't topical here.
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The link command line I stated came from a Visual studio Fortran project in Properties->Linker->Command Line. All the libraries stated are part of the same visual studio solution and they all use the Intel Fortran compiler.
I tried adding libm.lib to the linker input, but in this case there are multiply defined symbols as some definitions seem to clash with trigonometric functions in math.h called from C++ (this Fortran project links to both Intel Fortran and Visual C++ libraries). It's strange that it didn't need the basic math library before (maybe VS included it by default?) and now it does even though the only changes I've made are to replace the BLAS and LAPACK libraries. I should also mention that I'm using the cblas functions in the mkl libraries rather than the stdcall versions
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Could you do a clean rebuild and post the build log (as an attachment) please?
thank you --
--Lorri
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Lorri Menard (Intel) wrote:
Could you do a clean rebuild and post the build log (as an attachment) please?
thank you --
--Lorri
I don't have authorisation to add attachments here so I've sent it in a message
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I see that your posted link command line contains: /NODEFAULTLIB:"LIBMMDD"
That seems like a good reason you wouldn't link the math library?
Note also that Intel supplies its own, optimized version of libm, and its own header file mathimf.h, that contains additional functionality compared to math.h, though that doesn't look like the issue here.
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