[SOLVED] using 3 dimension array in Fortran 90

vjramana · 12-19-2013, 07:43 AM

I am using Ubuntu 64 bit. I have written a Fortran90 code to calculate some angle.

I defined the array like this:

Code:

INTEGER,PARAMETER :: totalFrames = 32000  
INTEGER,PARAMETER :: AAA=75
REAL,DIMENSION(45:AAA,1:256,1:totalFrames) :: ch_angles

IF I use AAA=75, I can compile this code. But If I use AAA=105 for example, it generate error message like this:

Code:

gfortran lipid-Tilt-Magnitude-thermo-cello.f90
/tmp/ccXOhMqQ.o: In function `__all_parameter_MOD_find_angle_ch':
lipid-Tilt-Magnitude-thermo-cello.f90:(.text+0x35): relocation truncated to fit: R_X86_64_32S against symbol `__all_parameter_MOD_x' defined in .bss section in /tmp/ccXOhMqQ.o
lipid-Tilt-Magnitude-thermo-cello.f90:(.text+0x48): relocation truncated to fit: R_X86_64_32S against symbol `__all_parameter_MOD_y' defined in .bss section in /tmp/ccXOhMqQ.o
lipid-Tilt-Magnitude-thermo-cello.f90:(.text+0x5b): relocation truncated to fit: R_X86_64_32S against symbol `__all_parameter_MOD_z' defined in .bss section in /tmp/ccXOhMqQ.o
lipid-Tilt-Magnitude-thermo-cello.f90:(.text+0x6e): relocation truncated to fit: R_X86_64_32S against symbol `__all_parameter_MOD_x' defined in .bss section in /tmp/ccXOhMqQ.o
lipid-Tilt-Magnitude-thermo-cello.f90:(.text+0x81): relocation truncated to fit: R_X86_64_32S against symbol `__all_parameter_MOD_y' defined in .bss section in /tmp/ccXOhMqQ.o
lipid-Tilt-Magnitude-thermo-cello.f90:(.text+0x94): relocation truncated to fit: R_X86_64_32S against symbol `__all_parameter_MOD_z' defined in .bss section in /tmp/ccXOhMqQ.o
/tmp/ccXOhMqQ.o: In function `__all_parameter_MOD_find_mid_point_vector':
lipid-Tilt-Magnitude-thermo-cello.f90:(.text+0x126): relocation truncated to fit: R_X86_64_32S against symbol `__all_parameter_MOD_x' defined in .bss section in /tmp/ccXOhMqQ.o
lipid-Tilt-Magnitude-thermo-cello.f90:(.text+0x139): relocation truncated to fit: R_X86_64_32S against symbol `__all_parameter_MOD_y' defined in .bss section in /tmp/ccXOhMqQ.o
lipid-Tilt-Magnitude-thermo-cello.f90:(.text+0x14c): relocation truncated to fit: R_X86_64_32S against symbol `__all_parameter_MOD_z' defined in .bss section in /tmp/ccXOhMqQ.o
lipid-Tilt-Magnitude-thermo-cello.f90:(.text+0x15f): relocation truncated to fit: R_X86_64_32S against symbol `__all_parameter_MOD_x' defined in .bss section in /tmp/ccXOhMqQ.o
lipid-Tilt-Magnitude-thermo-cello.f90:(.text+0x172): additional relocation overflows omitted from the output
collect2: ld returned 1 exit status
vijay@glycosim:~/Simulation-Folder-Feb2013/chapter5-thermo-paper2-Vj/thermo2-Analysis/analysis-bcm-/23_acf-tail-tilt-angle-bcm-thermo2/chain1/acf-chain1-CH-bcm-thermo-all-layers$ gfortran lipid-Tilt-Magnitude-thermo-cello.f90

I need help why I am getting this error. Is that any problem with memory?

Many thanks in advance.

Regards

sundialsvcs · 12-19-2013, 10:40 AM

My intuitive guess is that you are attempting to allocate a static data structure that is simply too large to be addressable on your hardware. (Or, perhaps by a 32-bit library, etc.) Your compiler documentation should discuss your alternatives, and the size-limitations that are inherent in their implementation.

suicidaleggroll · 12-19-2013, 11:45 AM

You specified that it's a real, but depending on compiler flags it could be allocated as a double. In which case:

AAA=75: 1938 MB
AAA=105: 3813 MB

3813 MB is well over the typical 2GB static data limit, which would tend to back up sundial's guess. Have you tried compiling with -mcmodel=medium?

vjramana · 12-20-2013, 08:11 AM

Dear suicidaleggroll,

Thank you for hint.
I tried to compile with -mcmodel=large. This solve my problem.

Regards