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|
#!/usr/bin/env py.test
# -*- coding: utf-8 -*-
import pytest
import os
import dijitso
import ctypes
@pytest.fixture()
def comm():
try:
from mpi4py import MPI
c = MPI.COMM_WORLD
except ImportError:
pytest.skip("Need mpi4py to test with comms.")
c = None
return c
_code_template_params = """\
/**
Arguments used to generate this code:
%(generator_params)s
*/
"""
_code_template_defines = """\
// Based on https://gcc.gnu.org/wiki/Visibility
#if defined _WIN32 || defined __CYGWIN__
#ifdef __GNUC__
#define DLL_EXPORT extern "C" __attribute__ ((dllexport))
#else
#define DLL_EXPORT extern "C" __declspec(dllexport)
#endif
#else
#define DLL_EXPORT extern "C" __attribute__ ((visibility ("default")))
#endif
"""
_code_template_interface = """\
// This would be '#include <ufc.h>'
class %(interfacename)s
{
public:
virtual ~%(interfacename)s() {}
virtual int get_test_value() const = 0;
};
"""
_code_template_class = """\
/// This would be the generated ufc::form code
class %(classname)s: public %(interfacename)s
{
public:
int get_test_value() const
{ return %(testvalue)s; }
};
"""
_code_template_factory = """\
/// Construct an object of class %(classname)s without any class interface wrapping
DLL_EXPORT void * create_%(signature)s()
{
return new %(classname)s();
}
"""
_code_template_testhook = """\
#include "testinclude.h"
DLL_EXPORT int get_test_value_%(testvalue)d(void * p)
{
%(interfacename)s * pp = static_cast<%(interfacename)s *>(p);
int v = pp->get_test_value();
return v + TESTINCLUDE_MAGIC_VALUE;
}
"""
def mygenerate(jitable, name, signature, generator_params):
"""."""
code_parts = dict(
generator_params=str(generator_params),
signature=signature,
classname="class_%s" % (jitable,),
interfacename="external_interface",
testvalue=jitable,
)
parts = [
_code_template_params % code_parts,
_code_template_defines % code_parts,
_code_template_interface % code_parts,
_code_template_class % code_parts,
_code_template_factory % code_parts,
_code_template_testhook % code_parts,
]
header = "// Dummy header"
source = '\n'.join(parts)
dependencies = ()
return header, source, dependencies
_default_dijitso_cache_dir = os.path.join(os.path.dirname(__file__), ".dijitso")
_testincludes = os.path.join(os.path.dirname(__file__), "testincludes")
def _jit_integer(jitable, comm=None, buildon="node",
dijitso_cache_dir=_default_dijitso_cache_dir):
"A mock jit routine setup to exercise much of the library."
# Setup params
cache_params = dict(
cache_dir=dijitso_cache_dir,
src_storage="compress",
)
build_params = dict(
debug=True,
include_dirs=(_testincludes,),
)
generator_params = None
params = dict(
cache=cache_params,
build=build_params,
generator=generator_params,
)
params = dijitso.validate_params(params)
# Compute a name
from dijitso.signatures import hashit
name = "jit_integer_" + hashit(jitable)
# Autodetect subcomms and role based on buildin option and
# physical disk access of processes
from dijitso.mpi import create_comms_and_role, send_binary, receive_binary
from dijitso.system import make_dirs
sync_dir = os.path.join(cache_params["cache_dir"], "sync")
make_dirs(sync_dir)
copy_comm, wait_comm, role = create_comms_and_role(comm, sync_dir, buildon)
# Somewhat messy definitions of send/receive/wait...
send = None
receive = None
wait = None
if role == "builder":
generate = mygenerate
if copy_comm is not None:
def send(lib_data):
assert role == "builder"
send_binary(copy_comm, lib_data)
elif role == "receiver":
generate = None
assert copy_comm is not None
def receive():
return receive_binary(copy_comm)
elif role == "waiter":
generate = None
if wait_comm is not None:
def wait():
wait_comm.barrier()
# Jit it!
lib, signature = dijitso.jit(jitable, name, params,
generate, send, receive, wait)
assert lib is not None
assert isinstance(signature, str)
# Extract the factory function we want from library
factory = dijitso.extract_factory_function(lib, "create_" + signature)
# ... and the test specific getter function
get_test_value = getattr(lib, "get_test_value_%d" % jitable)
get_test_value.argtypes = [ctypes.c_void_p]
get_test_value.restype = ctypes.c_int
# Return both library and factory
return lib, factory, get_test_value
@pytest.fixture()
def jit_integer():
return _jit_integer
|
