[feat] Add support for UPC language and launchers

docs/config_reference.rst

@@ -246,6 +246,9 @@ System Partition Configuration
 				    'environs': ['builtin'],
 				}
 
+   - ``upcrun``: Parallel programs will be launched using the `UPC <https://upc.lbl.gov/>`__ ``upcrun`` command.
+   - ``upcxx-run``: Parallel programs will be launched using the `UPC++ <https://bitbucket.org/berkeleylab/upcxx/wiki/Home>`__ ``upcxx-run`` command.
+
 .. js:attribute:: .systems[].partitions[].access
 
    :required: No

reframe/core/buildsystems.py

@@ -351,7 +351,7 @@ class SingleSource(BuildSystem):
     #: automatically based on the extension of the source file.
     #: The automatically detected extensions are the following:
     #:
-    #:   - C: `.c`.
+    #:   - C: `.c` and `.upc`.
     #:   - C++: `.cc`, `.cp`, `.cxx`, `.cpp`, `.CPP`, `.c++` and `.C`.
     #:   - Fortran: `.f`, `.for`, `.ftn`, `.F`, `.FOR`, `.fpp`, `.FPP`, `.FTN`,
     #:     `.f90`, `.f95`, `.f03`, `.f08`, `.F90`, `.F95`, `.F03` and `.F08`.
@@ -433,7 +433,7 @@ def emit_build_commands(self, environ):
 
     def _guess_language(self, filename):
         _, ext = os.path.splitext(filename)
-        if ext in ['.c']:
+        if ext in ['.c', '.upc']:
             return 'C'
 
         if ext in ['.cc', '.cp', '.cxx', '.cpp', '.CPP', '.c++', '.C']:

reframe/core/launchers/mpi.py

@@ -22,6 +22,34 @@ def command(self, job):
         return ['ibrun']
 
 
+@register_launcher('upcrun')
+class UpcrunLauncher(JobLauncher):
+    '''Launcher for UPC applications.'''
+
+    def command(self, job):
+        cmd = ['upcrun']
+        if job.num_tasks_per_node:
+            num_nodes = job.num_tasks // job.num_tasks_per_node
+            cmd += ['-N', str(num_nodes)]
+
+        cmd += ['-n', str(job.num_tasks)]
+        return cmd
+
+
+@register_launcher('upcxx-run')
+class UpcxxrunLauncher(JobLauncher):
+    '''Launcher for UPC++ applications.'''
+
+    def command(self, job):
+        cmd = ['upcxx-run']
+        if job.num_tasks_per_node:
+            num_nodes = job.num_tasks // job.num_tasks_per_node
+            cmd += ['-N', str(num_nodes)]
+
+        cmd += ['-n', str(job.num_tasks)]
+        return cmd
+
+
 @register_launcher('alps')
 class AlpsLauncher(JobLauncher):
     def command(self, job):

unittests/test_launchers.py

@@ -149,6 +149,36 @@ def expected_minimal_command(self):
                 '--foo')
 
 
+class TestUpcrunLauncher(_TestLauncher, unittest.TestCase):
+
+    @property
+    def launcher(self):
+        return getlauncher('upcrun')()
+
+    @property
+    def expected_command(self):
+        return 'upcrun -N 2 -n 4 --foo'
+
+    @property
+    def expected_minimal_command(self):
+        return 'upcrun -n 1 --foo'
+
+
+class TestUpcxxrunLauncher(_TestLauncher, unittest.TestCase):
+
+    @property
+    def launcher(self):
+        return getlauncher('upcxx-run')()
+
+    @property
+    def expected_command(self):
+        return 'upcxx-run -N 2 -n 4 --foo'
+
+    @property
+    def expected_minimal_command(self):
+        return 'upcxx-run -n 1 --foo'
+
+
 class TestAlpsLauncher(_TestLauncher, unittest.TestCase):
     @property
     def launcher(self):