MISC-TN-008: Running Debian Buster (armbian) on Mito8M

Info Box Applies to MITO 8M

This technical note was validated against specific versions of hardware and software. It may not work with other versions.

History

		Mito8M
	ARM frequency [MHz]	792
	Frequency [MHz]	1600
	Bus witdth [bit]	32

Test programs

STREAM

Building

git clone https://github.com/jeffhammond/STREAM.git
make

 1 armbian@Mito8M:~/devel/STREAM$ cat Makefile 
 2 CC = gcc
 3 CFLAGS = -O2 -fopenmp
 4 
 5 FC = gfortran-4.9
 6 FFLAGS = -O2 -fopenmp
 7 
 8 all: stream_c.exe
 9 
10 stream_f.exe: stream.f mysecond.o
11         $(CC) $(CFLAGS) -c mysecond.c
12         $(FC) $(FFLAGS) -c stream.f
13         $(FC) $(FFLAGS) stream.o mysecond.o -o stream_f.exe
14 
15 stream_c.exe: stream.c
16         $(CC) $(CFLAGS) stream.c -o stream_c.exe
17 
18 clean:
19         rm -f stream_f.exe stream_c.exe *.o
20 
21 # an example of a more complex build line for the Intel icc compiler
22 stream.icc: stream.c
23         icc -O3 -xCORE-AVX2 -ffreestanding -qopenmp -DSTREAM_ARRAY_SIZE=80000000 -DNTIMES=20 stream.c -o stream.omp.AVX2.80M.20x.icc

Running

armbian@Mito8M:~/devel/STREAM$ ./stream_c.exe 
-------------------------------------------------------------
STREAM version $Revision: 5.10 $
-------------------------------------------------------------
This system uses 8 bytes per array element.
-------------------------------------------------------------
Array size = 10000000 (elements), Offset = 0 (elements)
Memory per array = 76.3 MiB (= 0.1 GiB).
Total memory required = 228.9 MiB (= 0.2 GiB).
Each kernel will be executed 10 times.
 The *best* time for each kernel (excluding the first iteration)
 will be used to compute the reported bandwidth.
-------------------------------------------------------------
Number of Threads requested = 4
Number of Threads counted = 4
-------------------------------------------------------------
Your clock granularity/precision appears to be 1 microseconds.
Each test below will take on the order of 46427 microseconds.
   (= 46427 clock ticks)
Increase the size of the arrays if this shows that
you are not getting at least 20 clock ticks per test.
-------------------------------------------------------------
WARNING -- The above is only a rough guideline.
For best results, please be sure you know the
precision of your system timer.
-------------------------------------------------------------
Function    Best Rate MB/s  Avg time     Min time     Max time
Copy:            6770.5     0.024010     0.023632     0.025117
Scale:           6093.2     0.027474     0.026259     0.029142
Add:             5263.5     0.046008     0.045597     0.046230
Triad:           4820.0     0.050297     0.049793     0.050723
-------------------------------------------------------------
Solution Validates: avg error less than 1.000000e-13 on all three arrays
-------------------------------------------------------------