gflops

Simple GFLOPS measurement tool for ARM53 with NEON

Overview

This simple tool can estimate single core GFLOPS with using GEMM calculation. Note that it's very simple but NOT accurate. You can also use this tool for x86_64 architecture.

Build

$ make -f Makefile.arm53

You can use Makefile.x86_64 for x86_64 architecture.

Test

$ ./p1.arm53

You can use p1.x86_64 for x86_64 architecture.

Sample Result

Raspberry Pi CM3

DGEMM: 0.886263 GFLOPS ( 677 [ms] )
SGEMM: 2.18978 GFLOPS ( 274 [ms] )
IGEMM: 2.47934 GFLOPS ( 242 [ms] )

DGEMM uses double-precision floating point, SGEMM uses single-precision floating point and IGEMM uses int32_t integer. In Raspberry Pi CM3, NEON is enabled only for SGEMM because the OS is 32bit.

MacBook Pro 2018 ( 2.7 GHz Intel Core i7 )

DGEMM: 33.3333 GFLOPS ( 18 [ms] )
SGEMM: 75 GFLOPS ( 8 [ms] )
IGEMM: 22.2222 GFLOPS ( 27 [ms] )