11 May 2025 08:29:34 PM TIMER_CLOCK C++ version Demonstrate the use of the CLOCK timer. CLOCK is a C++ library routine (defined in ) It returns the processor time used by the program since the beginning of program execution. Divide this by CLOCKS_PER_SEC to convert to seconds. CLOCK is a crude timer, and results less than a tenth of a second are probably not reliable. The number of clock ticks per second is 1000000 TEST01 Time the RAND function by computing N values. For a given N, repeat the computation 5 times. Data vectors will be of minimum size 1 Data vectors will be of maximum size 16777216 CPU times are in seconds. N Rep #1 Rep #2 Rep #2 Rep #4 Rep #5 Min Ave Max 1 1e-06 0 0 0 0 0 2e-07 1e-06 2 0 1e-06 0 0 0 0 2e-07 1e-06 4 1e-06 0 0 0 1e-06 0 4e-07 1e-06 8 1e-06 1e-06 0 0 1e-06 0 6e-07 1e-06 16 1e-06 0 1e-06 1e-06 0 0 6e-07 1e-06 32 1e-06 1e-06 1e-06 1e-06 0 0 8e-07 1e-06 64 1e-06 2e-06 1e-06 2e-06 2e-06 1e-06 1.6e-06 2e-06 128 2e-06 3e-06 3e-06 2e-06 3e-06 2e-06 2.6e-06 3e-06 256 5e-06 5e-06 5e-06 5e-06 5e-06 5e-06 5e-06 5e-06 512 1e-05 1.1e-05 1.1e-05 1e-05 1e-05 1e-05 1.04e-05 1.1e-05 1024 2e-05 2e-05 1.9e-05 2e-05 2e-05 1.9e-05 1.98e-05 2e-05 2048 4e-05 3.9e-05 3.9e-05 4e-05 4e-05 3.9e-05 3.96e-05 4e-05 4096 8.1e-05 7.8e-05 8.8e-05 7.8e-05 7.9e-05 7.8e-05 8.08e-05 8.8e-05 8192 0.000163 0.000159 0.000159 0.000159 0.000164 0.000159 0.0001608 0.000164 16384 0.000333 0.000308 0.00031 0.000307 0.000308 0.000307 0.0003132 0.000333 32768 0.000631 0.000608 0.00063 0.000607 0.000598 0.000598 0.0006148 0.000631 65536 0.001207 0.001148 0.001126 0.001101 0.001094 0.001094 0.0011352 0.001207 131072 0.002188 0.002081 0.001985 0.001991 0.001932 0.001932 0.0020354 0.002188 262144 0.004037 0.003795 0.003761 0.003854 0.003902 0.003761 0.0038698 0.004037 524288 0.007799 0.007329 0.007464 0.007498 0.007361 0.007329 0.0074902 0.007799 1048576 0.015525 0.015037 0.014758 0.014826 0.015042 0.014758 0.0150376 0.015525 2097152 0.03116 0.030315 0.029507 0.029482 0.030415 0.029482 0.0301758 0.03116 4194304 0.069743 0.064775 0.064809 0.064489 0.064753 0.064489 0.0657138 0.069743 8388608 0.129186 0.119663 0.119379 0.117637 0.118187 0.117637 0.12081 0.129186 16777216 0.254018 0.235532 0.237938 0.238074 0.238426 0.235532 0.240798 0.254018 TIMER_CLOCK Normal end of execution. 11 May 2025 08:29:37 PM