Intel® Fortran Compiler
Build applications that can scale for the future with optimized code designed for Intel® Xeon® and compatible processors.
Announcements
Welcome to the Intel Community. If you get an answer you like, please mark it as an Accepted Solution to help others. Thank you!
26733 Discussions

IPO optimization still giving problems

Manfredo_d_
Beginner
97 Views

Hi, I am trying to compile my code with the -fast flag that includes the ipo (with ifort v. 17). The compilation proceeds until linking, throws a bunch of warnings and then stall forever.

This is the way I compile

ifort -c -fast -g -qopenmp -lz -lhdf5 -lhdf5_fortran -lhdf5_hl  -I../../src/include     radiate_utils.f90

(... + all compilation of all other src files)

xiar crs ../../build//ed_2.1-opt.a allometry.o radiate_utils.o (... + all other object files)

xiar: executing 'ar'

ifort -o ../../build//ed_2.1-opt edmain.o -fast -g -qopenmp -lz -lhdf5 -lhdf5_fortran -lhdf5_hl  -I../../src/include    ../../build//ed_2.1-opt.a -lz -lhdf5 -lhdf5_fortran -lhdf5_hl

ipo: warning #11021: unresolved H5Dget_offset
        Referenced in libhdf5_fortran.a(H5Dff.o)
ipo: warning #11021: unresolved H5Sget_regular_hyperslab
        Referenced in libhdf5_fortran.a(H5Sff.o)
ipo: warning #11021: unresolved H5Sis_regular_hyperslab
        Referenced in libhdf5_fortran.a(H5Sff.o)
ipo: warning #11021: unresolved H5Acreate2
        Referenced in libhdf5_fortran.a(H5Aff.o)
        Referenced in libhdf5_fortran.a(H5Af.o)

And the warnings go on for a while. The compilation is never terminated (I let it run for 3 h when without -ipo it takes around 15 min)

0 Kudos
1 Reply
Steve_Lionel
Black Belt Retired Employee
97 Views

If ifort 18 does the same thing, report it to Intel and attach everything they need to reproduce the problem.

Reply