SPRADO9 March   2025 AM62L

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Processor Core and Compute Benchmarks
    1. 2.1 Dhrystone
    2. 2.2 Whetstone
    3. 2.3 Linpack
    4. 2.4 NBench
    5. 2.5 CoreMark-Pro
    6. 2.6 Fast Fourier Transform
    7. 2.7 Cryptographic Benchmarks
  6. 3Memory System Benchmarks
    1. 3.1 Memory Bandwidth and Latency
      1. 3.1.1 LMBench
      2. 3.1.2 STREAM
    2. 3.2 Critical Memory Access Latency
    3. 3.3 UDMA: DDR to DDR Data Copy
  7. 4Summary
  8. 5References

2.3 Linpack

Linpack measures peak double precision (64 bit) floating point performance in solving a dense linear system.

root@am62lxx-evm:~# runLinpack 



Linpack running ...

Execution time approx 10 seconds
Unrolled Single Precision Linpack

Unrolled Single Precision Linpack

     norm. resid      resid           machep         x[0]-1        x[n-1]-1
       2.0        4.69621336e-05  1.19209290e-07 -1.31130219e-05 -1.30534172e-05
    times are reported for matrices of order   100
      dgefa      dgesl      total       kflops     unit      ratio
 times for array with leading dimension of  201
       0.00       0.00       0.00     506018       0.00       0.02
       0.00       0.00       0.00     507890       0.00       0.02
       0.00       0.00       0.00     511293       0.00       0.02
       0.00       0.00       0.00     511331       0.00       0.02
 times for array with leading dimension of 200
       0.00       0.00       0.00     559630       0.00       0.02
       0.00       0.00       0.00     563766       0.00       0.02
       0.00       0.00       0.00     563304       0.00       0.02
       0.00       0.00       0.00     564925       0.00       0.02
Unrolled Single  Precision 511331 Kflops ; 10 Reps

Table 2-4 shows the results for this benchmark.

Table 2-3 Linpack Benchmarks
Arm-Cortex-A53(1.25GHz)

Linpack (Kflops)

511331