Compiling .f90 files on Linux version of PGI compiler

Accelerated Computing HPC Compilers Legacy PGI Compilers
1

hi All, I need your help.

I have this big program that I am working on (fortran 90 and cuda fortran) that I need to compile on Linux. It consists of 18 files. I am able to compile them on windows and VS 2010, but not Linux pgfortran compiler.
When I build, I get huge output that I don’t understand, plus there is no a.out file (executable).

here is the compiling switches:
pgfortran -Mpreprocess -D_DEBUG -O3 -Mcuda=4.1,cc20 -Mextend -Mfree
-Minform=severe common.f90 flow.f90 force.f90 geometry.f90 grid.f90 Humidity.f90 init.f90 inverse.f90 kernels.f90 misc.f90 mult.f90 OptionalParams.f90 output.f90 Quick5.f90 reynolds.f90 string.f90

here is what the output look like:
force.o: In function shearkang_': /home/tmardan/quick5/./force.f90:756: undefined reference to finteg1_’
/home/tmardan/quick5/./force.f90:776: undefined reference to finteg1_' /home/tmardan/quick5/./force.f90:805: undefined reference to finteg1_’
/home/tmardan/quick5/./force.f90:806: undefined reference to finteg1_' /home/tmardan/quick5/./force.f90:807: undefined reference to finteg1_’
force.o:/home/tmardan/quick5/./force.f90:808: more undefined references to fint eg1_' follow force.o: In function getrcf_‘:
/home/tmardan/quick5/./force.f90:1024: undefined reference to finteg_' /home/tmardan/quick5/./force.f90:1085: undefined reference to fit1_’
/home/tmardan/quick5/./force.f90:1085: undefined reference to qromb_' /home/tmardan/quick5/./force.f90:1085: undefined reference to fitb1_’
/home/tmardan/quick5/./force.f90:1085: undefined reference to qromb_' /home/tmardan/quick5/./force.f90:1085: undefined reference to fit32_’
/home/tmardan/quick5/./force.f90:1085: undefined reference to qromb_' geometry.o: In function pointrecess_‘:
/home/tmardan/quick5/./geometry.f90:213: undefined reference to udgheight_' grid.o: In function adaptnonnested_’:
/home/tmardan/quick5/./grid.f90:508: undefined reference to interp1_' /home/tmardan/quick5/./grid.f90:508: undefined reference to interp1_’
/home/tmardan/quick5/./grid.f90:508: undefined reference to interp_' grid.o: In function getcontrol_‘:
/home/tmardan/quick5/./grid.f90:1010: undefined reference to sort_' /home/tmardan/quick5/./grid.f90:1011: undefined reference to sort_’
init.o: In function readrun_': /home/tmardan/quick5/./init.f90:297: undefined reference to sort2_’
/home/tmardan/quick5/./init.f90:299: undefined reference to abs_val_sort_' /home/tmardan/quick5/./init.f90:307: undefined reference to sort_’
/home/tmardan/quick5/./init.f90:318: undefined reference to sort_' init.o: In function loadinitialpressure_‘:
/home/tmardan/quick5/./init.f90:667: undefined reference to matinit_' /home/tmardan/quick5/./init.f90:667: undefined reference to matinit_’
/home/tmardan/quick5/./init.f90:667: undefined reference to matinit_' /home/tmardan/quick5/./init.f90:667: undefined reference to matinit_’
/home/tmardan/quick5/./init.f90:667: undefined reference to matinit_' init.o: In function readrail_‘:
/home/tmardan/quick5/./init.f90:724: undefined reference to readudg_' init.o: In function normalize_’:
/home/tmardan/quick5/./init.f90:1031: undefined reference to matrix33_inverse_' /home/tmardan/quick5/./init.f90:1031: undefined reference to matrix_multi_’
inverse.o: In function calc_deriv_': /home/tmardan/quick5/./inverse.f90:287: undefined reference to equate_’
/home/tmardan/quick5/./inverse.f90:316: undefined reference to equate_' /home/tmardan/quick5/./inverse.f90:342: undefined reference to equate_’
/home/tmardan/quick5/./inverse.f90:367: undefined reference to equate_' inverse.o: In function getinc_‘:
/home/tmardan/quick5/./inverse.f90:473: undefined reference to equate_' /home/tmardan/quick5/./inverse.f90:473: undefined reference to matrix33_inverse
’
misc.o: In function stiffness_': /home/tmardan/quick5/./misc.f90:899: undefined reference to matinit’
Quick5.o: In function quick5': /home/tmardan/quick5/./Quick5.f90:124: undefined reference to endtime_’
Quick5.o: In function dorailgeomrun_': /home/tmardan/quick5/./Quick5.f90:305: undefined reference to endtime_’
Quick5.o: In function dogapextrapolationrun_': /home/tmardan/quick5/./Quick5.f90:360: undefined reference to endtime_’
reynolds.o: In function reyneq_': /home/tmardan/quick5/./reynolds.f90:182: undefined reference to tridag_’
/home/tmardan/quick5/./reynolds.f90:211: undefined reference to tridag_' reynolds.o: In function reyneq1_‘:
/home/tmardan/quick5/./reynolds.f90:490: undefined reference to tridag_' /home/tmardan/quick5/./reynolds.f90:519: undefined reference to tridag_’
reynolds.o: In function reyneq2_': /home/tmardan/quick5/./reynolds.f90:799: undefined reference to tridag_’
reynolds.o:/home/tmardan/quick5/./reynolds.f90:828: more undefined references to
`tridag_’ follow

there are no errors, warnings or anything.

Please advice!

Dolf

2

Hi Dolf,

These are all undefined references, meaning the linker can’t find these symbols in any of the files provided. You’re either missing some source files, missing a library, or have the symbol names decorated incorrectly.

  • Mat
3

That actually solved it…

Thanks Mat!

Dolf

4

I was able to make the output a.out. When I try ./a.out I am able to run the code, but I get the following:

CML VERSION 5.0 GPU Quick Solver

Simulation started at: 17:16:02 – 11/13/2013

PGFIO-F-225/list-directed read/unit=1/lexical error-- unknown token type.
File name = rail.dat formatted, sequential access record = 504
In source file init.f90, at line number 729

what is PGFIO-F-225 ?? never seen this before in windows!
Please advice.

Dolf

5

Hi Dolf,

On Windows, a new line is composed of a carriage return and a new line (\r\n) while on Linux it’s just a new line (\n). This can cause problems when reading in files generated on Windows but being read on Linux.

If “rail.dat” is a text file, you can use a utility such as dos2unix or tounix to convert the file to use the Linux format.

Alternately, you can set the environment flag “FORTRANOPT=crif”

From the PGI Compiler User’s Guide PGI Documentation Archive for Versions Prior to 17.7

FORTRANOPT
FORTRANOPT allows the user to adjust the behavior of the PGI Fortran compilers.
• If FORTRANOPT exists and contains the value vaxio, the record length in the open statement is in units
of 4-byte words, and the $ edit descriptor only has an effect for lines beginning with a space or a plus sign
(+).
• If FORTRANOPT exists and contains the value format_relaxed, an I/O item corresponding to a
numerical edit descriptor (such as F, E, I, and so on) is not required to be a type implied by the descriptor.
• In a non-Windows environment, if FORTRANOPT exists and contains the value crif, a sequential
formatted or list-directed record is allowed to be terminated with the character sequence \r\n (carriage
return, newline). This approach is useful when reading records from a file produced on a Window’s system.
The following example causes the PGI Fortran compilers to use VAX I/O conventions:
% setenv FORTRANOPT vaxio

Hope this helps,
Mat

6

Hi Mat,

rail.dat and run.dat are both ANSI files. They are both input files. What kind of format I need to change them to so linux can read them? I am using dos2unix software for windows.

Cheers,
Dolf

7

It totally worked man!

I appreciate the help.
(FYI: FORTRANOPT=crif compiler switch did not work)

Cheers,
Dolf

8

FORTRANOPT=crif compiler switch

Great. Good to know it worked. Note that FORTRANOPT is an environment variable not a compiler flag.

  • Mat