Hi All,
Iam running LU decomposition algorithm on a 23 node cluster. Each node has 2GB of RAM. When iam trying to run the algorithm for single precision complex matrix of size 16400*16400,iam getting the following compilation errors.
/tmp/ccmtcg1e.o(.text+0xa1): In function `MAIN__':
: relocation truncated to fit: R_X86_64_32S .bss
/tmp/ccmtcg1e.o(.text+0x1b9): In function `MAIN__':
: relocation truncated to fit: R_X86_64_32S .bss
/tmp/ccmtcg1e.o(.text+0x25b): In function `MAIN__':
: relocation truncated to fit: R_X86_64_32S .bss
/tmp/ccmtcg1e.o(.text+0x2f7): In function `MAIN__':
: relocation truncated to fit: R_X86_64_32S .bss
/tmp/ccmtcg1e.o(.text+0x59d): In function `MAIN__':
: relocation truncated to fit: R_X86_64_32S .bss
/tmp/ccmtcg1e.o(.text+0x71b): In function `MAIN__':
: relocation truncated to fit: R_X86_64_32S .bss
/tmp/ccmtcg1e.o(.text+0x788): In function `MAIN__':
: relocation truncated to fit: R_X86_64_32S .bss
/usr/lib64/liblamf77mpi.a(bcast_f.o)(.text+0x1a): In function `mpi_bcast__':
: relocation truncated to fit: R_X86_64_PC32 lam_F_handles
/usr/lib64/liblamf77mpi.a(bcast_f.o)(.text+0x30): In function `mpi_bcast__':
: relocation truncated to fit: R_X86_64_PC32 lam_F_handles
/usr/lib64/liblamf77mpi.a(bcast_f.o)(.text+0x3d): In function `mpi_bcast__':
: relocation truncated to fit: R_X86_64_PC32 lam_F_bottom
/usr/lib64/liblamf77mpi.a(crank_f.o)(.text+0x12): In function `mpi_comm_rank__':
: additional relocation overflows omitted from the output
collect2: ld returned 1 exit status
mpif77: No such file or directory
I know for such a big matrix the matrix size is more than 2GB (16400*16400*8 Bytes = 2.15GB). IS this the reason for the above compilation errors?
If this is the case,do we have any techniques where i can run the algorithm for matrix sizes more than 16400*16400. Or the cluster iam using is limited for certain problem size (16384*16384).
Thanks for your help.
Regards
Srinivasa Patri
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