Draft: Develop

This MR adds two features to pystencils. First, the base pointer specification is revealed to the user which allows producing kernels with less register usage. Second, the summands insider the summation printer are printer recursively now which allows for more parallelism inside a single core.

doc/version_from_git.py

@@ -18,17 +18,20 @@ def version_number_from_git(tag_prefix='release/', sha_length=10, version_format
 
     version_strings = get_released_versions()
     version_strings.sort(key=StrictVersion)
-    latest_release = version_strings[-1]
-    commits_since_tag = subprocess.getoutput('git rev-list {}..HEAD --count'.format(tag_from_version(latest_release)))
-    sha = subprocess.getoutput('git rev-parse HEAD')[:sha_length]
-    is_dirty = len(subprocess.getoutput("git status --untracked-files=no -s")) > 0
+    if len(version_strings) > 0:
+        latest_release = version_strings[-1]
+        commits_since_tag = subprocess.getoutput('git rev-list {}..HEAD --count'.format(tag_from_version(latest_release)))
+        sha = subprocess.getoutput('git rev-parse HEAD')[:sha_length]
+        is_dirty = len(subprocess.getoutput("git status --untracked-files=no -s")) > 0
 
-    if int(commits_since_tag) == 0:
-        version_string = latest_release
-    else:
-        next_version = increment_version(latest_release)
-        version_string = version_format.format(version=next_version, commits=commits_since_tag, sha=sha)
+        if int(commits_since_tag) == 0:
+            version_string = latest_release
+        else:
+            next_version = increment_version(latest_release)
+            version_string = version_format.format(version=next_version, commits=commits_since_tag, sha=sha)
 
-    if is_dirty:
-        version_string += ".dirty"
-    return version_string
+        if is_dirty:
+            version_string += ".dirty"
+        return version_string
+    else:
+        return "development"