Hi .
I am new to cuda. Based on the the sample projects, i have constructed a project of my own.
When i run the code i get the following output.
nandu@cuda-desktop:~/NVIDIA_CUDA_SDK/projects/lagrangian$ …/…/bin/linux/release/lagrangian
Parllel Processing time: 0.055000 (ms)
serial Processing time: 0.176000 (ms)
Speedup=3.200000
*** glibc detected *** …/…/bin/linux/release/lagrangian: free(): invalid next size (fast): 0x0807be10 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6[0xb7d3fa85]
/lib/tls/i686/cmov/libc.so.6(cfree+0x90)[0xb7d434f0]
…/…/bin/linux/release/lagrangian[0x804ac69]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe0)[0xb7cea450]
…/…/bin/linux/release/lagrangian(pthread_cancel+0x59)[0x804a531]
======= Memory map: ========
08048000-0805d000 r-xp 00000000 08:01 7053675 /home/nandu/NVIDIA_CUDA_SDK/bin/linux/release/lagrangian
0805d000-0805e000 rw-p 00014000 08:01 7053675 /home/nandu/NVIDIA_CUDA_SDK/bin/linux/release/lagrangian
0805e000-080a2000 rw-p 0805e000 00:00 0 [heap]
b5d00000-b5d21000 rw-p b5d00000 00:00 0
b5d21000-b5e00000 —p b5d21000 00:00 0
b5e9a000-b5e9b000 rw-p b5e9a000 00:00 0
b5e9b000-b6e9b000 rw-s d3152000 00:0e 13790 /dev/nvidia1
b6e9b000-b6eab000 rw-s 345a0000 00:0e 13790 /dev/nvidia1
b6eab000-b6eac000 rw-s 3459f000 00:0e 13790 /dev/nvidia1
b6eac000-b6fac000 rw-s 3460c000 00:0e 13790 /dev/nvidia1
b6fac000-b6fad000 rw-s 3451d000 00:0e 13790 /dev/nvidia1
b6fad000-b70ad000 rw-s 34052000 00:0e 13790 /dev/nvidia1
b70ad000-b70ae000 rw-s 334b2000 00:0e 13790 /dev/nvidia1
b70ae000-b70af000 rw-s fdc0a000 00:0e 13790 /dev/nvidia1
b70af000-b70b0000 rw-s 334b1000 00:0e 13790 /dev/nvidia1
b70b0000-b74b0000 rw-s 33561000 00:0e 13790 /dev/nvidia1
b74b0000-b74b1000 rw-s fdc08000 00:0e 13790 /dev/nvidia1
b74b1000-b74b2000 rw-s 3456d000 00:0e 13790 /dev/nvidia1
b74b2000-b78b2000 rw-s 34722000 00:0e 13790 /dev/nvidia1
b78b2000-b78c6000 r-xp 00000000 08:01 8759711 /usr/lib/libz.so.1.2.3.3
b78c6000-b78c7000 rw-p 00013000 08:01 8759711 /usr/lib/libz.so.1.2.3.3
b78c7000-b7c82000 r-xp 00000000 08:01 8757411 /usr/lib/libcuda.so.177.67
b7c82000-b7c84000 rw-p 003ba000 08:01 8757411 /usr/lib/libcuda.so.177.67
b7c84000-b7caf000 rw-p b7c84000 00:00 0
b7caf000-b7cb6000 r-xp 00000000 08:01 3876465 /lib/tls/i686/cmov/librt-2.7.so
b7cb6000-b7cb8000 rw-p 00006000 08:01 3876465 /lib/tls/i686/cmov/librt-2.7.so
b7cb8000-b7cba000 r-xp 00000000 08:01 3876452 /lib/tls/i686/cmov/libdl-2.7.so
b7cba000-b7cbc000 rw-p 00001000 08:01 3876452 /lib/tls/i686/cmov/libdl-2.7.so
b7cbc000-b7cd0000 r-xp 00000000 08:01 3876463 /lib/tls/i686/cmov/libpthread-2.7.so
b7cd0000-b7cd2000 rw-p 00013000 08:01 3876463 /lib/tls/i686/cmov/libpthread-2.7.so
b7cd2000-b7cd4000 rw-p b7cd2000 00:00 0
b7cd4000-b7e1d000 r-xp 00000000 08:01 3876449 /lib/tls/i686/cmov/libc-2.7.so
b7e1d000-b7e1e000 r–p 00149000 08:01 3876449 /lib/tls/i686/cmov/libc-2.7.so
b7e1e000-b7e20000 rw-p 0014a000 08:01 3876449 /lib/tls/i686/cmov/libc-2.7.so
b7e20000-b7e23000 rw-p b7e20000 00:00 0
b7e23000-b7e2d000 r-xp 00000000 08:01 3858453 /lib/libgcc_s.so.1
b7e2d000-b7e2e000 rw-p 0000a000 08:01 3858453 /lib/libgcc_s.so.1
b7e2e000-b7e51000 r-xp 00000000 08:01 3876453 /lib/tls/i686/cmov/libm-2.7.so
b7e51000-b7e53000 rw-p 00023000 08:01 3876453 /lib/tls/i686/cmov/libm-2.7.so
b7e53000-b7e54000 rw-p b7e53000 00:00 0
b7e54000-b7f3c000 r-xp 00000000 08:01 8758975 /usr/lib/libstdc++.so.6.0.9
b7f3c000-b7f3f000 r–p 000e8000 08:01 8758975 /usr/lib/libstdc++.so.6.0.9
b7f3f000-b7f41000 rw-p 000eb000 08:01 8758975 /usr/lib/libstdc++.so.6.0.9
b7f41000-b7f47000 rw-p b7f41000 00:00 0
b7f47000-b7f58000 rw-s 34732000 00:0e 13790 /dev/nvidia1
b7f58000-b7f9d000 r-xp 00000000 08:01 8798261 /usr/local/cuda/lib/libcudart.so.2.0
b7f9d000-b7f9e000 rw-p 00044000 08:01 8798261 /usr/local/cuda/lib/libcudart.so.2.0
b7f9e000-b7fa0000 rw-p b7f9e000 00:00 0
b7fa0000-b7fa1000 r-xp b7fa0000 00:00 0 [vdso]
b7fa1000-b7fbb000 r-xp 00000000 08:01 3858658 /lib/ld-2.7.so
b7fbb000-b7fbd000 rw-p 00019000 08:01 3858658 /lib/ld-2.7.so
bfb71000-bfb84000 rwxp bffeb000 00:00 0 [stack]
bfb84000-bfb86000 rw-p bfffe000 00:00 0
Aborted
Why do i get the above error. Does it imply that the result shown could be wrong??
PLZ help…
Nanda kishore
final year, Elec. Engg
IIT Madras.