Build and run tests in parallel (#41)

* Build and run tests in parallel

* Workaround travis OSX Homebrew bug

* semicolons ...

* Don't auto-update before installing homebrew packages

.gitignore

@@ -12,3 +12,6 @@ build/
 
 # Sage
 *.sage.py
+
+# Tests
+test_*.txt

.travis.yml

@@ -51,11 +51,17 @@ addons:
   apt:
     packages:
       - libgmp-dev
+      - parallel
   homebrew:
     packages:
       - gmp
+      # Travis `bundle` bug: https://travis-ci.community/t/macos-build-fails-because-of-homebrew-bundle-unknown-command/7296/28
+      # - parallel
 
 before_install:
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
+      HOMEBREW_NO_AUTO_UPDATE=1 brew install parallel;
+    fi
   - |
     if [ "${CHANNEL}" = stable ]; then
       BRANCH="v$(curl https://nim-lang.org/channels/stable)"
@@ -92,7 +98,7 @@ before_script:
 script:
     - nimble refresh
     - nimble install gmp stew
-    - nimble test
+    - nimble test_parallel
 branches:
   except:
     - gh-pages

azure-pipelines.yml

@@ -185,7 +185,7 @@ steps:
   - bash: |
       echo "PATH=${PATH}"
       export ucpu=${UCPU}
-      nimble test
+      nimble test_parallel
     displayName: 'Testing the package (including GMP)'
     condition: ne(variables['Agent.OS'], 'Windows_NT')
 

constantine.nimble

@@ -8,8 +8,12 @@ srcDir        = "src"
 ### Dependencies
 requires "nim >= 1.1.0"
 
+const buildParallel = "test_parallel.txt"
+
 ### Helper functions
-proc test(flags, path: string) =
+proc test(flags, path: string, commandFile = false) =
+  # commandFile should be a "file" but Nimscript doesn't support IO
+  # TODO: use a proper runner
   if not dirExists "build":
     mkDir "build"
   # Compilation language is controlled by WEAVE_TEST_LANG
@@ -21,10 +25,16 @@ proc test(flags, path: string) =
   if existsEnv"CC":
     cc = " --cc:" & getEnv"CC"
 
-  echo "\n========================================================================================"
-  echo "Running [flags: ", flags, "] ", path
-  echo "========================================================================================"
-  exec "nim " & lang & cc & " " & flags & " --verbosity:0 --outdir:build -r --hints:off --warnings:off " & path
+  let command = "nim " & lang & cc & " " & flags & " --verbosity:0 --outdir:build -r --hints:off --warnings:off " & path
+
+  if not commandFile:
+    echo "\n========================================================================================"
+    echo "Running [flags: ", flags, "] ", path
+    echo "========================================================================================"
+    exec command
+  else:
+    # commandFile.writeLine command
+    exec "echo \'" & command & "\' >> " & buildParallel
 
 proc runBench(benchName: string, compiler = "") =
   if not dirExists "build":
@@ -174,6 +184,92 @@ task test_no_gmp, "Run tests that don't require GMP":
     runBench("bench_fp12")
     runBench("bench_ec_swei_proj_g1")
 
+task test_parallel, "Run all tests in parallel (via GNU parallel)":
+  # -d:testingCurves is configured in a *.nim.cfg for convenience
+  let cmdFile = true # open(buildParallel, mode = fmWrite) # Nimscript doesn't support IO :/
+  exec "> " & buildParallel
+
+  # Primitives
+  test "", "tests/test_primitives.nim", cmdFile
+
+  # Big ints
+  test "", "tests/test_io_bigints.nim", cmdFile
+  test "", "tests/test_bigints.nim", cmdFile
+  test "", "tests/test_bigints_multimod.nim", cmdFile
+
+  test "", "tests/test_bigints_vs_gmp.nim", cmdFile
+
+  # Field
+  test "", "tests/test_io_fields", cmdFile
+  test "", "tests/test_finite_fields.nim", cmdFile
+  test "", "tests/test_finite_fields_mulsquare.nim", cmdFile
+  test "", "tests/test_finite_fields_sqrt.nim", cmdFile
+  test "", "tests/test_finite_fields_powinv.nim", cmdFile
+
+  test "", "tests/test_finite_fields_vs_gmp.nim", cmdFile
+
+  # Towers of extension fields
+  test "", "tests/test_fp2.nim", cmdFile
+  test "", "tests/test_fp6.nim", cmdFile
+  test "", "tests/test_fp12.nim", cmdFile
+
+  # Elliptic curve arithmetic
+  test "", "tests/test_ec_weierstrass_projective_g1.nim", cmdFile
+  test "", "tests/test_ec_bn254.nim", cmdFile
+  test "", "tests/test_ec_bls12_381.nim", cmdFile
+
+  # cmdFile.close()
+  # Execute everything in parallel with GNU parallel
+  exec "parallel --keep-order --group < " & buildParallel
+
+  exec "> " & buildParallel
+
+  if sizeof(int) == 8: # 32-bit tests on 64-bit arch
+    # Primitives
+    test "-d:Constantine32", "tests/test_primitives.nim", cmdFile
+
+    # Big ints
+    test "-d:Constantine32", "tests/test_io_bigints.nim", cmdFile
+    test "-d:Constantine32", "tests/test_bigints.nim", cmdFile
+    test "-d:Constantine32", "tests/test_bigints_multimod.nim", cmdFile
+
+    test "-d:Constantine32", "tests/test_bigints_vs_gmp.nim", cmdFile
+
+    # Field
+    test "-d:Constantine32", "tests/test_io_fields", cmdFile
+    test "-d:Constantine32", "tests/test_finite_fields.nim", cmdFile
+    test "-d:Constantine32", "tests/test_finite_fields_mulsquare.nim", cmdFile
+    test "-d:Constantine32", "tests/test_finite_fields_sqrt.nim", cmdFile
+    test "-d:Constantine32", "tests/test_finite_fields_powinv.nim", cmdFile
+
+    test "-d:Constantine32", "tests/test_finite_fields_vs_gmp.nim", cmdFile
+
+    # Towers of extension fields
+    test "-d:Constantine32", "tests/test_fp2.nim", cmdFile
+    test "-d:Constantine32", "tests/test_fp6.nim", cmdFile
+    test "-d:Constantine32", "tests/test_fp12.nim", cmdFile
+
+    # Elliptic curve arithmetic
+    test "-d:Constantine32", "tests/test_ec_weierstrass_projective_g1.nim", cmdFile
+    test "-d:Constantine32", "tests/test_ec_bn254.nim", cmdFile
+    test "-d:Constantine32", "tests/test_ec_bls12_381.nim", cmdFile
+
+    # cmdFile.close()
+    # Execute everything in parallel with GNU parallel
+    exec "parallel --keep-order --group < " & buildParallel
+
+  # Now run the benchmarks
+  #
+  # Benchmarks compile and run
+  # ignore Windows 32-bit for the moment
+  # Ensure benchmarks stay relevant. Ignore Windows 32-bit at the moment
+  if not defined(windows) or not (existsEnv"UCPU" or getEnv"UCPU" == "i686"):
+    runBench("bench_fp")
+    runBench("bench_fp2")
+    runBench("bench_fp6")
+    runBench("bench_fp12")
+    runBench("bench_ec_swei_proj_g1")
+
 task bench_fp, "Run benchmark 𝔽p with your default compiler":
   runBench("bench_fp")