scivision

opkg install alsa-utils kernel-module-snd-usb-audio bluez5 gstreamer pulseaudio

opkg install kernel-module-ftdi-sio


rfkill unblock bluetooth
bluetoothctl
power on
agent on
scan on

scivision

#!/usr/bin/env python
from setuptools import setup
import subprocess
import sys,os

with open('requirements.txt', 'r') as f:
    req = f.read().split('\n')
    req = [os.path.basename(sys.executable) + '-' + r for r in req if r]

try:

scivision

cmake_minimum_required(VERSION 3.1)
project(mytest Fortran)

# NOTE: -fdefault-integer-8 -m64  are crucial for MKL to avoid SIGSEGV at runtime!
add_compile_options(-fdefault-integer-8 -m64)

add_executable(inteld intel_dgemm.f90)

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/Modules/")
# https://software.intel.com/en-us/articles/intel-mkl-link-line-advisor 

scivision

#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

// This is a "chunk" of characters that we can pull out and handle
// at one time. Since arrays in C are just collections of bytes we
// can iterate through a char array and pretend it was an int array.
// Using this union you can still get at the individual characters.

scivision

Keybase proof

I hereby claim:

• I am scivision on github.
• I am michaelhirsch (https://keybase.io/michaelhirsch) on keybase.
• I have a public key ASBVl-XHulfiM2wIc_VVlWTjcERM88PPv9RxzP3zxX3qhgo

To claim this, I am signing this object:

scivision

# on Ubuntu 17.10
# https://www.scivision.dev/compiling-opencv3-with-extra-contributed-modules/

$ cmake -DOPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules/ -DBUILD_TIFF=ON -DBUILD_opencv_java=OFF -DWITH_CUDA=OFF -DWITH_OPENGL=ON -DWITH_OPENCL=ON -DWITH_IPP=ON -DWITH_TBB=ON -DWITH_EIGEN=ON -DWITH_V4L=ON -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=$(python -c "import sys; print(sys.prefix)") -DPYTHON_EXECUTABLE=$(which python) -DPYTHON_INCLUDE_DIR=$(python -c "from distutils.sysconfig import get_python_inc; print(get_python_inc())") -DPYTHON_PACKAGES_PATH=$(python -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())") ..

-- The CXX compiler identification is GNU 7.2.0
-- The C compiler identification is GNU 7.2.0
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info

scivision

# Raspberry Pi 3  with Debian 9 stretch

$ cmake -DOPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules/ -DBUILD_TIFF=ON -DBUILD_opencv_java=OFF -DWITH_CUDA=OFF -DWITH_OPENGL=ON -DWITH_OPENCL=ON -DWITH_IPP=ON -DWITH_TBB=ON -DWITH_EIGEN=ON -DWITH_V4L=ON -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=$(python -c "import sys; print(sys.prefix)") -DPYTHON_EXECUTABLE=$(which python) -DPYTHON_INCLUDE_DIR=$(python -c "from distutils.sysconfig import get_python_inc; print(get_python_inc())") -DPYTHON_PACKAGES_PATH=$(python -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())") .. 


-- The CXX compiler identification is GNU 6.3.0
-- The C compiler identification is GNU 6.3.0
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info

scivision

#--- shell  (Ubuntu 17.10, Octave 4.2.1, Python 3.6.4)
pip install oct2py==4.0.6

#--- Python
x=[0.,0,0,0,0,1,1,1,1,0,0,0,0,0]

from oct2py import Oct2Py
with Oct2Py() as oc:
    oc.eval('pkg load signal')
    y = oc.sgolayfilt(x,3,5) 

scivision

import ephem
import datetime

Boston=ephem.Observer()
Boston.lat='42.3462'
Boston.lon='-71.0978'
Boston.date = datetime.datetime.now()
# %% these parameters are for super-precise estimates, not necessary.
Boston.elevation = 3 # meters
Boston.pressure = 1010 # millibar

scivision

/RunMatmul.py 
Fortran -->
 GCC version 6.2.0
 --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=35840 -mtune=broadwell -march=x86-64 -auxbase-strip CMakeFiles/matmul.dir/matmul.f90.o -g -O3 -Wall -Werror=array-bounds -Wextra -Wpedantic
     double DGEMM (sec):   0.753308
     single SGEMM (sec):  25.260954
 double intrinsic (sec):   0.411206
 single intrinsic (sec):   0.206234
 
--> Julia 0.6.2