06 October 2025 01:09:15 AM memory_test(): C version Try to see how big vectors and matrices can be. User value of N_LOG_MIN = 10 User value of N_LOG_MAX = 27 I4VEC Memory Test Log2(N) N Ave CPU Real 10 1024 1.00 1.90e-05 0.00e+00 11 2048 1.02 3.50e-05 0.00e+00 12 4096 1.00 7.20e-05 0.00e+00 13 8192 1.00 1.42e-04 0.00e+00 14 16384 1.00 2.85e-04 0.00e+00 15 32768 1.01 6.26e-04 0.00e+00 16 65536 1.00 1.23e-03 0.00e+00 17 131072 1.00 2.45e-03 0.00e+00 18 262144 1.00 5.09e-03 0.00e+00 19 524288 1.00 9.60e-03 0.00e+00 20 1048576 1.00 1.97e-02 0.00e+00 21 2097152 1.00 3.91e-02 0.00e+00 22 4194304 1.00 7.47e-02 0.00e+00 23 8388608 1.00 1.48e-01 0.00e+00 24 16777216 1.00 2.94e-01 1.00e+00 25 33554432 0.94 5.97e-01 0.00e+00 26 67108864 0.50 1.25e+00 1.00e+00 27 134217728 0.25 2.45e+00 3.00e+00 R4VEC Memory Test Log2(N) N Ave CPU Real 10 1024 1.01 1.86e-05 0.00e+00 11 2048 1.01 3.39e-05 0.00e+00 12 4096 1.00 6.82e-05 0.00e+00 13 8192 1.00 1.70e-04 0.00e+00 14 16384 1.00 3.05e-04 0.00e+00 15 32768 1.00 5.88e-04 0.00e+00 16 65536 1.00 1.15e-03 0.00e+00 17 131072 1.00 2.35e-03 0.00e+00 18 262144 1.00 4.45e-03 0.00e+00 19 524288 1.00 9.82e-03 0.00e+00 20 1048576 1.00 1.86e-02 0.00e+00 21 2097152 1.00 3.83e-02 0.00e+00 22 4194304 1.00 7.44e-02 0.00e+00 23 8388608 1.00 1.59e-01 0.00e+00 24 16777216 1.00 3.19e-01 1.00e+00 25 33554432 1.00 6.32e-01 0.00e+00 26 67108864 0.50 1.19e+00 1.00e+00 27 134217728 0.25 2.43e+00 3.00e+00 R8VEC Memory Test Log2(N) N Ave CPU Real 10 1024 1.01 1.90e-05 0.00e+00 11 2048 1.01 4.10e-05 0.00e+00 12 4096 1.00 7.20e-05 0.00e+00 13 8192 1.00 1.56e-04 0.00e+00 14 16384 1.00 2.75e-04 0.00e+00 15 32768 1.00 6.01e-04 0.00e+00 16 65536 1.00 1.14e-03 0.00e+00 17 131072 1.00 2.29e-03 0.00e+00 18 262144 1.00 4.69e-03 0.00e+00 19 524288 1.00 9.46e-03 0.00e+00 20 1048576 1.00 1.87e-02 0.00e+00 21 2097152 1.00 3.77e-02 0.00e+00 22 4194304 1.00 8.22e-02 0.00e+00 23 8388608 1.00 1.67e-01 0.00e+00 24 16777216 1.00 3.28e-01 1.00e+00 25 33554432 1.00 6.36e-01 0.00e+00 26 67108864 1.00 1.26e+00 1.00e+00 27 134217728 1.00 2.63e+00 3.00e+00 I4MAT Memory Test Log2(N) N N1 N2 Ave CPU Real 10 1024 32 32 1.000977 1.907349e-05 0.000000e+00 11 2048 32 64 1.016602 3.528595e-05 0.000000e+00 12 4096 64 64 1.004639 6.961823e-05 0.000000e+00 13 8192 64 128 1.003662 1.401901e-04 0.000000e+00 14 16384 128 128 1.004944 2.832413e-04 0.000000e+00 15 32768 128 256 1.005280 6.084442e-04 0.000000e+00 16 65536 256 256 1.000458 1.172066e-03 0.000000e+00 17 131072 256 512 1.001213 2.381325e-03 0.000000e+00 18 262144 512 512 1.001144 5.063057e-03 0.000000e+00 19 524288 512 1024 1.001167 9.578705e-03 0.000000e+00 20 1048576 1024 1024 1.000424 1.998997e-02 0.000000e+00 21 2097152 1024 2048 1.000325 3.863811e-02 0.000000e+00 22 4194304 2048 2048 0.999948 7.620049e-02 0.000000e+00 23 8388608 2048 4096 0.999856 1.607246e-01 0.000000e+00 24 16777216 4096 4096 1.000031 3.214493e-01 1.000000e+00 25 33554432 4096 8192 0.944511 6.144695e-01 0.000000e+00 26 67108864 8192 8192 0.500000 1.237741e+00 2.000000e+00 27 134217728 8192 16384 0.250000 2.510862e+00 2.000000e+00 R4MAT Memory Test Log2(N) N N1 N2 Ave CPU Real 10 1024 32 32 1.01 1.53e-05 0.00e+00 11 2048 32 64 1.01 3.24e-05 0.00e+00 12 4096 64 64 1.00 7.06e-05 0.00e+00 13 8192 64 128 1.00 1.41e-04 0.00e+00 14 16384 128 128 1.00 3.01e-04 0.00e+00 15 32768 128 256 1.00 5.72e-04 0.00e+00 16 65536 256 256 1.00 1.14e-03 0.00e+00 17 131072 256 512 1.00 2.29e-03 0.00e+00 18 262144 512 512 1.00 4.41e-03 0.00e+00 19 524288 512 1024 1.00 9.65e-03 0.00e+00 20 1048576 1024 1024 1.00 1.83e-02 0.00e+00 21 2097152 1024 2048 1.00 3.86e-02 0.00e+00 22 4194304 2048 2048 1.00 7.51e-02 0.00e+00 23 8388608 2048 4096 1.00 1.59e-01 1.00e+00 24 16777216 4096 4096 1.00 3.12e-01 0.00e+00 25 33554432 4096 8192 1.00 6.27e-01 0.00e+00 26 67108864 8192 8192 0.50 1.22e+00 2.00e+00 27 134217728 8192 16384 0.25 2.38e+00 2.00e+00 R8MAT Memory Test Log2(N) N N1 N2 Ave CPU Real 10 1024 32 32 1.01 2.10e-05 0.00e+00 11 2048 32 64 1.01 3.43e-05 0.00e+00 12 4096 64 64 1.00 6.87e-05 0.00e+00 13 8192 64 128 1.00 1.37e-04 0.00e+00 14 16384 128 128 1.00 3.32e-04 0.00e+00 15 32768 128 256 1.00 5.70e-04 0.00e+00 16 65536 256 256 1.00 1.12e-03 0.00e+00 17 131072 256 512 1.00 2.26e-03 0.00e+00 18 262144 512 512 1.00 4.35e-03 0.00e+00 19 524288 512 1024 1.00 8.73e-03 0.00e+00 20 1048576 1024 1024 1.00 1.76e-02 0.00e+00 21 2097152 1024 2048 1.00 3.50e-02 0.00e+00 22 4194304 2048 2048 1.00 7.79e-02 0.00e+00 23 8388608 2048 4096 1.00 1.58e-01 0.00e+00 24 16777216 4096 4096 1.00 3.19e-01 1.00e+00 25 33554432 4096 8192 1.00 6.82e-01 0.00e+00 26 67108864 8192 8192 1.00 1.38e+00 2.00e+00 27 134217728 8192 16384 1.00 2.74e+00 3.00e+00 memory_test(): Normal end of execution. 06 October 2025 01:09:46 AM