Port to osx; add support for travis testing.

[ggorman]

• Makes OpenMP optional so that sz builds on osx.
• Adds Travis support to test build on linux and osx (need to enable travis builds for repo).

[ggorman]

Note that automated testing has already found its first bug (the reason this PR is initially red). If you look at the travis logs you'll see:

  if [ ! -f ../example/testdata/x86/testdouble_8_8_8_128.dat.sz ]; then
     exit 1
  fi
  ./bin/testdouble_decompress ../example/sz.config ../example/testdata/x86/testdouble_8_8_8_128.dat.sz 8 8 8 128
  if [ ! -f ../example/testdata/x86/testdouble_8_8_8_128.dat.sz.out ]; then
     exit 1
  fi

cfgFile=../example/sz.config
timecost=0.040055
done
Wrong version: 
Compressed-data version (35.61.61)
Current sz version: (2.1.6)
Please double-check if the compressed data (or file) is correct.```

So something has gone wrong with sz versioning.

[disheng222]

Hi, I have merged your pull request to master branch. Thanks.

If you use testdouble_decompress or testfloat_decompress to do the decompression, you should not input the sz.config as parameters. I guess you probably followed the example section in the README, and there was a typo: ./test_decompress sz.config testdouble_8_8_8_128.dat.sz 8 8 8 128 The above command should be : ./test_decompress testdouble_8_8_8_128.dat.sz 8 8 8 128

I have fixed it in README.

Sheng

Best, Sheng

On Sun, Aug 18, 2019 at 7:22 AM Gerard Gorman notifications@github.com wrote:

Note that automated testing has already found its first bug (the reason this PR is initially red). If you look at the travis logs you'll see:

if [ ! -f ../example/testdata/x86/testdouble_8_8_8_128.dat.sz ]; then exit 1 fi ./bin/testdouble_decompress ../example/sz.config ../example/testdata/x86/testdouble_8_8_8_128.dat.sz 8 8 8 128 if [ ! -f ../example/testdata/x86/testdouble_8_8_8_128.dat.sz.out ]; then exit 1 fi

cfgFile=../example/sz.config timecost=0.040055 done Wrong version: Compressed-data version (35.61.61) Current sz version: (2.1.6) Please double-check if the compressed data (or file) is correct.```

So something has gone wrong with sz versioning.

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