Search is not available for this dataset
text
stringlengths
75
104k
def redistribute_threads(blockdimx, blockdimy, blockdimz, dimx, dimy, dimz): """ Redistribute threads from the Z dimension towards the X dimension. Also clamp number of threads to the problem dimension size, if necessary """ # Shift threads from the z dimension # into the y dimension ...
def register_default_dimensions(cube, slvr_cfg): """ Register the default dimensions for a RIME solver """ import montblanc.src_types as mbs # Pull out the configuration options for the basics autocor = slvr_cfg['auto_correlations'] ntime = 10 na = 7 nbands = 1 nchan = 16 npol = 4...
def get_ip_address(ifname): """ Hack to get IP address from the interface """ s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) return socket.inet_ntoa(fcntl.ioctl( s.fileno(), 0x8915, # SIOCGIFADDR struct.pack('256s', ifname[:15]) )[20:24])
def nvcc_compiler_settings(): """ Find nvcc and the CUDA installation """ search_paths = os.environ.get('PATH', '').split(os.pathsep) nvcc_path = find_in_path('nvcc', search_paths) default_cuda_path = os.path.join('usr', 'local', 'cuda') cuda_path = os.environ.get('CUDA_PATH', default_cuda_path) ...
def inspect_cuda_version_and_devices(compiler, settings): """ Poor mans deviceQuery. Returns CUDA_VERSION information and CUDA device information in JSON format """ try: output = build_and_run(compiler, ''' #include <cuda.h> #include <stdio.h> __device__ ...
def customize_compiler_for_nvcc(compiler, nvcc_settings): """inject deep into distutils to customize gcc/nvcc dispatch """ # tell the compiler it can process .cu files compiler.src_extensions.append('.cu') # save references to the default compiler_so and _compile methods default_compiler_so = comp...
def inspect_cuda(): """ Return cuda device information and nvcc/cuda setup """ nvcc_settings = nvcc_compiler_settings() sysconfig.get_config_vars() nvcc_compiler = ccompiler.new_compiler() sysconfig.customize_compiler(nvcc_compiler) customize_compiler_for_nvcc(nvcc_compiler, nvcc_settings) ...
def template_dict(self): """ Returns a dictionary suitable for templating strings with properties and dimensions related to this Solver object. Used in templated GPU kernels. """ slvr = self D = { # Constants 'LIGHTSPEED': montblanc.const...
def rime_solver(slvr_cfg): """ Factory function that produces a RIME solver """ from montblanc.impl.rime.tensorflow.RimeSolver import RimeSolver return RimeSolver(slvr_cfg)
def find_sources(obj, argspec=None): """ Returns a dictionary of source methods found on this object, keyed on method name. Source methods are identified.by argspec, a list of argument specifiers. So for e.g. an argpsec of :code:`[['self', 'context'], ['s', 'c']]` would match methods looking lik...
def sources(self): """ Returns a dictionary of source methods found on this object, keyed on method name. Source methods are identified by (self, context) arguments on this object. For example: .. code-block:: python def f(self, context): ... ...
def parallactic_angles(times, antenna_positions, field_centre): """ Computes parallactic angles per timestep for the given reference antenna position and field centre. Arguments: times: ndarray Array of unique times with shape (ntime,), obtained from TIME column of MS ta...
def setup_logging(): """ Setup logging configuration """ # Console formatter, mention name cfmt = logging.Formatter(('%(name)s - %(levelname)s - %(message)s')) # File formatter, mention time ffmt = logging.Formatter(('%(asctime)s - %(levelname)s - %(message)s')) # Console handler ch = log...
def constant_cache(method): """ Caches constant arrays associated with an array name. The intent of this decorator is to avoid the cost of recreating and storing many arrays of constant data, especially data created by np.zeros or np.ones. Instead, a single array of the first given shape is cre...
def chunk_cache(method): """ Caches chunks of default data. This decorator caches generated default data so as to avoid recomputing it on a subsequent queries to the provider. """ @functools.wraps(method) def wrapper(self, context): # Defer to the method if no caching is enable...
def _create_defaults_source_provider(cube, data_source): """ Create a DefaultsSourceProvider object. This provides default data sources for each array defined on the hypercube. The data sources may either by obtained from the arrays 'default' data source or the 'test' data source. """ from m...
def _construct_tensorflow_expression(slvr_cfg, feed_data, device, shard): """ Constructs a tensorflow expression for computing the RIME """ zero = tf.constant(0) src_count = zero src_ph_vars = feed_data.src_ph_vars LSA = feed_data.local polarisation_type = slvr_cfg['polarisation_type'] # ...
def _get_data(data_source, context): """ Get data from the data source, checking the return values """ try: # Get data from the data source data = data_source.source(context) # Complain about None values if data is None: raise ValueError("'None' returned from " ...
def _supply_data(data_sink, context): """ Supply data to the data sink """ try: data_sink.sink(context) except Exception as e: ex = ValueError("An exception occurred while " "supplying data to data sink '{ds}'\n\n" "{e}\n\n" "{help}".format(ds=context.name...
def _apply_source_provider_dim_updates(cube, source_providers, budget_dims): """ Given a list of source_providers, apply the list of suggested dimension updates given in provider.updated_dimensions() to the supplied hypercube. Dimension global_sizes are always updated with the supplied sizes and ...
def _setup_hypercube(cube, slvr_cfg): """ Sets up the hypercube given a solver configuration """ mbu.register_default_dimensions(cube, slvr_cfg) # Configure the dimensions of the beam cube cube.register_dimension('beam_lw', 2, description='E Beam cube l width') cube.reg...
def _partition(iter_dims, data_sources): """ Partition data sources into 1. Dictionary of data sources associated with radio sources. 2. List of data sources to feed multiple times. 3. List of data sources to feed once. """ src_nr_vars = set(source_var_types().values()) iter_dims = set...
def _feed(self, cube, data_sources, data_sinks, global_iter_args): """ Feed stub """ try: self._feed_impl(cube, data_sources, data_sinks, global_iter_args) except Exception as e: montblanc.log.exception("Feed Exception") raise
def _feed_impl(self, cube, data_sources, data_sinks, global_iter_args): """ Implementation of staging_area feeding """ session = self._tf_session FD = self._tf_feed_data LSA = FD.local # Get source strides out before the local sizes are modified during # the source loops...
def _compute(self, feed_dict, shard): """ Call the tensorflow compute """ try: descriptor, enq = self._tfrun(self._tf_expr[shard], feed_dict=feed_dict) self._inputs_waiting.decrement(shard) except Exception as e: montblanc.log.exception("Compute Exception") ...
def _consume(self, data_sinks, cube, global_iter_args): """ Consume stub """ try: return self._consume_impl(data_sinks, cube, global_iter_args) except Exception as e: montblanc.log.exception("Consumer Exception") raise e, None, sys.exc_info()[2]
def _consume_impl(self, data_sinks, cube, global_iter_args): """ Consume """ LSA = self._tf_feed_data.local output = self._tfrun(LSA.output.get_op) # Expect the descriptor in the first tuple position assert len(output) > 0 assert LSA.output.fed_arrays[0] == 'descriptor'...
def rime_solver_cfg(**kwargs): """ Produces a SolverConfiguration object, inherited from a simple python dict, and containing the options required to configure the RIME Solver. Keyword arguments ----------------- Any keyword arguments are inserted into the returned dict. Returns ...
def _create_filenames(filename_schema, feed_type): """ Returns a dictionary of beam filename pairs, keyed on correlation,from the cartesian product of correlations and real, imaginary pairs Given 'beam_$(corr)_$(reim).fits' returns: { 'xx' : ('beam_xx_re.fits', 'beam_xx_im.fits'), '...
def _open_fits_files(filenames): """ Given a {correlation: filename} mapping for filenames returns a {correlation: file handle} mapping """ kw = { 'mode' : 'update', 'memmap' : False } def _fh(fn): """ Returns a filehandle or None if file does not exist """ return fits.open(fn, ...
def _create_axes(filenames, file_dict): """ Create a FitsAxes object """ try: # Loop through the file_dictionary, finding the # first open FITS file. f = iter(f for tup in file_dict.itervalues() for f in tup if f is not None).next() except StopIteration as e: rai...
def _initialise(self, feed_type="linear"): """ Initialise the object by generating appropriate filenames, opening associated file handles and inspecting the FITS axes of these files. """ self._filenames = filenames = _create_filenames(self._filename_schema, ...
def ebeam(self, context): """ ebeam cube data source """ if context.shape != self.shape: raise ValueError("Partial feeding of the " "beam cube is not yet supported %s %s." % (context.shape, self.shape)) ebeam = np.empty(context.shape, context.dtype) # Iterat...
def model_vis(self, context): """ model visibility data sink """ column = self._vis_column msshape = None # Do we have a column descriptor for the supplied column? try: coldesc = self._manager.column_descriptors[column] except KeyError as e: colde...
def _cache(method): """ Decorator for caching data source return values Create a key index for the proxied array in the context. Iterate over the array shape descriptor e.g. (ntime, nbl, 3) returning tuples containing the lower and upper extents of string dimensions. Takes (0, d) in the case of...
def _proxy(method): """ Decorator returning a method that proxies a data source. """ @functools.wraps(method) def memoizer(self, context): return method(context) return memoizer
def start(self, start_context): """ Perform any logic on solution start """ for p in self._providers: p.start(start_context) if self._clear_start: self.clear_cache()
def stop(self, stop_context): """ Perform any logic on solution stop """ for p in self._providers: p.stop(stop_context) if self._clear_stop: self.clear_cache()
def default_base_ant_pairs(self, context): """ Compute base antenna pairs """ k = 0 if context.cfg['auto_correlations'] == True else 1 na = context.dim_global_size('na') gen = (i.astype(context.dtype) for i in np.triu_indices(na, k)) # Cache np.triu_indices(na, k) as its likely that (na, k) will ...
def default_antenna1(self, context): """ Default antenna1 values """ ant1, ant2 = default_base_ant_pairs(self, context) (tl, tu), (bl, bu) = context.dim_extents('ntime', 'nbl') ant1_result = np.empty(context.shape, context.dtype) ant1_result[:,:] = ant1[np.newaxis,bl:bu] return ant1_result
def default_antenna2(self, context): """ Default antenna2 values """ ant1, ant2 = default_base_ant_pairs(self, context) (tl, tu), (bl, bu) = context.dim_extents('ntime', 'nbl') ant2_result = np.empty(context.shape, context.dtype) ant2_result[:,:] = ant2[np.newaxis,bl:bu] return ant2_result
def identity_on_pols(self, context): """ Returns [[1, 0], tiled up to other dimensions [0, 1]] """ A = np.empty(context.shape, context.dtype) A[:,:,:] = [[[1,0,0,1]]] return A
def default_stokes(self, context): """ Returns [[1, 0], tiled up to other dimensions [0, 0]] """ A = np.empty(context.shape, context.dtype) A[:,:,:] = [[[1,0,0,0]]] return A
def frequency(self, context): """ Frequency data source """ channels = self._manager.spectral_window_table.getcol(MS.CHAN_FREQ) return channels.reshape(context.shape).astype(context.dtype)
def ref_frequency(self, context): """ Reference frequency data source """ num_chans = self._manager.spectral_window_table.getcol(MS.NUM_CHAN) ref_freqs = self._manager.spectral_window_table.getcol(MS.REF_FREQUENCY) data = np.hstack((np.repeat(rf, bs) for bs, rf in zip(num_chans, ref_fre...
def uvw(self, context): """ Per-antenna UVW coordinate data source """ # Hacky access of private member cube = context._cube # Create antenna1 source context a1_actual = cube.array("antenna1", reify=True) a1_ctx = SourceContext("antenna1", cube, context.cfg, ...
def antenna1(self, context): """ antenna1 data source """ lrow, urow = MS.uvw_row_extents(context) antenna1 = self._manager.ordered_uvw_table.getcol( MS.ANTENNA1, startrow=lrow, nrow=urow-lrow) return antenna1.reshape(context.shape).astype(context.dtype)
def antenna2(self, context): """ antenna2 data source """ lrow, urow = MS.uvw_row_extents(context) antenna2 = self._manager.ordered_uvw_table.getcol( MS.ANTENNA2, startrow=lrow, nrow=urow-lrow) return antenna2.reshape(context.shape).astype(context.dtype)
def parallactic_angles(self, context): """ parallactic angle data source """ # Time and antenna extents (lt, ut), (la, ua) = context.dim_extents('ntime', 'na') return (mbu.parallactic_angles(self._times[lt:ut], self._antenna_positions[la:ua], self._phase_dir) ...
def observed_vis(self, context): """ Observed visibility data source """ lrow, urow = MS.row_extents(context) data = self._manager.ordered_main_table.getcol( self._vis_column, startrow=lrow, nrow=urow-lrow) return data.reshape(context.shape).astype(context.dtype)
def flag(self, context): """ Flag data source """ lrow, urow = MS.row_extents(context) flag = self._manager.ordered_main_table.getcol( MS.FLAG, startrow=lrow, nrow=urow-lrow) return flag.reshape(context.shape).astype(context.dtype)
def weight(self, context): """ Weight data source """ lrow, urow = MS.row_extents(context) weight = self._manager.ordered_main_table.getcol( MS.WEIGHT, startrow=lrow, nrow=urow-lrow) # WEIGHT is applied across all channels weight = np.repeat(weight, self._manager.ch...
def load_tf_lib(): """ Load the tensorflow library """ from os.path import join as pjoin import pkg_resources import tensorflow as tf path = pjoin('ext', 'rime.so') rime_lib_path = pkg_resources.resource_filename("montblanc", path) return tf.load_op_library(rime_lib_path)
def raise_validator_errors(validator): """ Raise any errors associated with the validator. Parameters ---------- validator : :class:`cerberus.Validator` Validator Raises ------ ValueError Raised if errors existed on `validator`. Message describing each error and...
def indented(text, level, indent=2): """Take a multiline text and indent it as a block""" return "\n".join("%s%s" % (level * indent * " ", s) for s in text.splitlines())
def dumped(text, level, indent=2): """Put curly brackets round an indented text""" return indented("{\n%s\n}" % indented(text, level + 1, indent) or "None", level, indent) + "\n"
def copy_file( source_path, target_path, allow_undo=True, no_confirm=False, rename_on_collision=True, silent=False, extra_flags=0, hWnd=None ): """Perform a shell-based file copy. Copying in this way allows the possibility of undo, auto-renaming, and showing the "flying file"...
def move_file( source_path, target_path, allow_undo=True, no_confirm=False, rename_on_collision=True, silent=False, extra_flags=0, hWnd=None ): """Perform a shell-based file move. Moving in this way allows the possibility of undo, auto-renaming, and showing the "flying file" ...
def rename_file( source_path, target_path, allow_undo=True, no_confirm=False, rename_on_collision=True, silent=False, extra_flags=0, hWnd=None ): """Perform a shell-based file rename. Renaming in this way allows the possibility of undo, auto-renaming, and showing the "flying ...
def delete_file( source_path, allow_undo=True, no_confirm=False, silent=False, extra_flags=0, hWnd=None ): """Perform a shell-based file delete. Deleting in this way uses the system recycle bin, allows the possibility of undo, and showing the "flying file" animation during the de...
def structured_storage(filename): """Pick out info from MS documents with embedded structured storage(typically MS Word docs etc.) Returns a dictionary of information found """ if not pythoncom.StgIsStorageFile(filename): return {} flags = storagecon.STGM_READ | storagecon.STGM_SHARE...
def CreateShortcut(Path, Target, Arguments="", StartIn="", Icon=("", 0), Description=""): """Create a Windows shortcut: Path - As what file should the shortcut be created? Target - What command should the desktop use? Arguments - What arguments should be supplied to the command? StartIn - What fold...
def undelete(self, original_filepath): """Restore the most recent version of a filepath, returning the filepath it was restored to(as rename-on-collision will apply if a file already exists at that path). """ candidates = self.versions(original_filepath) if not candidates...
def _get_queue_types(fed_arrays, data_sources): """ Given a list of arrays to feed in fed_arrays, return a list of associated queue types, obtained from tuples in the data_sources dictionary """ try: return [data_sources[n].dtype for n in fed_arrays] except KeyError as e: rai...
def create_queue_wrapper(name, queue_size, fed_arrays, data_sources, *args, **kwargs): """ Arguments name: string Name of the queue queue_size: integer Size of the queue fed_arrays: list array names that will be fed by this queue data_sources: ...
def parse_python_assigns(assign_str): """ Parses a string, containing assign statements into a dictionary. .. code-block:: python h5 = katdal.open('123456789.h5') kwargs = parse_python_assigns("spw=3; scans=[1,2];" "targets='bpcal,radec';" ...
def find_sinks(obj): """ Returns a dictionary of sink methods found on this object, keyed on method name. Sink methods are identified by (self, context) arguments on this object. For example: def f(self, context): ... is a sink method, but def f(self, ctx): ... is not...
def sinks(self): """ Returns a dictionary of sink methods found on this object, keyed on method name. Sink methods are identified by (self, context) arguments on this object. For example: def f(self, context): ... is a sink method, but def f(self, c...
def _antenna_uvw(uvw, antenna1, antenna2, chunks, nr_of_antenna): """ numba implementation of antenna_uvw """ if antenna1.ndim != 1: raise ValueError("antenna1 shape should be (row,)") if antenna2.ndim != 1: raise ValueError("antenna2 shape should be (row,)") if uvw.ndim != 2 or uvw.s...
def _raise_decomposition_errors(uvw, antenna1, antenna2, chunks, ant_uvw, max_err): """ Raises informative exception for an invalid decomposition """ start = 0 problem_str = [] for ci, chunk in enumerate(chunks): end = start + chunk ant1 = antenna1[sta...
def _raise_missing_antenna_errors(ant_uvw, max_err): """ Raises an informative error for missing antenna """ # Find antenna uvw coordinates where any UVW component was nan # nan + real == nan problems = np.nonzero(np.add.reduce(np.isnan(ant_uvw), axis=2)) problem_str = [] for c, a in zip(*prob...
def antenna_uvw(uvw, antenna1, antenna2, chunks, nr_of_antenna, check_missing=False, check_decomposition=False, max_err=100): """ Computes per-antenna UVW coordinates from baseline ``uvw``, ``antenna1`` and ``antenna2`` coordinates logically grouped into baseline chunks. ...
def default_sources(**kwargs): """ Returns a dictionary mapping source types to number of sources. If the number of sources for the source type is supplied in the kwargs these will be placed in the dictionary. e.g. if we have 'point', 'gaussian' and 'sersic' source types, then default_...
def sources_to_nr_vars(sources): """ Converts a source type to number of sources mapping into a source numbering variable to number of sources mapping. If, for example, we have 'point', 'gaussian' and 'sersic' source types, then passing the following dict as an argument sources_to_nr_vars({'po...
def source_range_tuple(start, end, nr_var_dict): """ Given a range of source numbers, as well as a dictionary containing the numbers of each source, returns a dictionary containing tuples of the start and end index for each source variable type. """ starts = np.array([0 for nr_var in SOURCE...
def source_range(start, end, nr_var_dict): """ Given a range of source numbers, as well as a dictionary containing the numbers of each source, returns a dictionary containing tuples of the start and end index for each source variable type. """ return OrderedDict((k, e-s) for k, (s, ...
def source_range_slices(start, end, nr_var_dict): """ Given a range of source numbers, as well as a dictionary containing the numbers of each source, returns a dictionary containing slices for each source variable type. """ return OrderedDict((k, slice(s,e,1)) for k, (s, e) in s...
def point_lm(self, context): """ Return a lm coordinate array to montblanc """ lm = np.empty(context.shape, context.dtype) # Print the array schema montblanc.log.info(context.array_schema.shape) # Print the space of iteration montblanc.log.info(context.iter_args) ...
def point_stokes(self, context): """ Return a stokes parameter array to montblanc """ stokes = np.empty(context.shape, context.dtype) stokes[:,:,0] = 1 stokes[:,:,1:4] = 0 return stokes
def ref_frequency(self, context): """ Return a reference frequency array to montblanc """ ref_freq = np.empty(context.shape, context.dtype) ref_freq[:] = 1.415e9 return ref_freq
def update(self, scopes=[], add_scopes=[], rm_scopes=[], note='', note_url=''): """Update this authorization. :param list scopes: (optional), replaces the authorization scopes with these :param list add_scopes: (optional), scopes to be added :param list rm_sco...
def iter_labels(self, number=-1, etag=None): """Iterate over the labels for every issue associated with this milestone. .. versionchanged:: 0.9 Add etag parameter. :param int number: (optional), number of labels to return. Default: -1 returns all available labe...
def current_function(frame): """ Get reference to currently running function from inspect/trace stack frame. Parameters ---------- frame : stack frame Stack frame obtained via trace or inspect Returns ------- fnc : function reference Currently running function """ ...
def current_module_name(frame): """ Get name of module of currently running function from inspect/trace stack frame. Parameters ---------- frame : stack frame Stack frame obtained via trace or inspect Returns ------- modname : string Currently running function module na...
def _trace(self, frame, event, arg): """ Build a record of called functions using the trace mechanism """ # Return if this is not a function call if event != 'call': return # Filter calling and called functions by module names src_mod = current_modul...
def stop(self): """Stop tracing""" # Stop tracing sys.settrace(None) # Build group structure if group filter is defined if self.grpflt is not None: # Iterate over graph nodes (functions) for k in self.fncts: # Construct group identity str...
def _clrgen(n, h0, hr): """Default colour generating function Parameters ---------- n : int Number of colours to generate h0 : float Initial H value in HSV colour specification hr : float Size of H value range to use for colour generation ...
def graph(self, fnm=None, size=None, fntsz=None, fntfm=None, clrgen=None, rmsz=False, prog='dot'): """ Construct call graph Parameters ---------- fnm : None or string, optional (default None) Filename of graph file to be written. File type is determined b...
def create_review_comment(self, body, commit_id, path, position): """Create a review comment on this pull request. All parameters are required by the GitHub API. :param str body: The comment text itself :param str commit_id: The SHA of the commit to comment on :param str path: ...
def diff(self): """Return the diff""" resp = self._get(self._api, headers={'Accept': 'application/vnd.github.diff'}) return resp.content if self._boolean(resp, 200, 404) else None
def is_merged(self): """Checks to see if the pull request was merged. :returns: bool """ url = self._build_url('merge', base_url=self._api) return self._boolean(self._get(url), 204, 404)
def iter_comments(self, number=-1, etag=None): """Iterate over the comments on this pull request. :param int number: (optional), number of comments to return. Default: -1 returns all available comments. :param str etag: (optional), ETag from a previous request to the same ...
def iter_files(self, number=-1, etag=None): """Iterate over the files associated with this pull request. :param int number: (optional), number of files to return. Default: -1 returns all available files. :param str etag: (optional), ETag from a previous request to the same ...
def iter_issue_comments(self, number=-1, etag=None): """Iterate over the issue comments on this pull request. :param int number: (optional), number of comments to return. Default: -1 returns all available comments. :param str etag: (optional), ETag from a previous request to the sam...
def merge(self, commit_message='', sha=None): """Merge this pull request. :param str commit_message: (optional), message to be used for the merge commit :returns: bool """ parameters = {'commit_message': commit_message} if sha: parameters['sha'] =...
def patch(self): """Return the patch""" resp = self._get(self._api, headers={'Accept': 'application/vnd.github.patch'}) return resp.content if self._boolean(resp, 200, 404) else None
def update(self, title=None, body=None, state=None): """Update this pull request. :param str title: (optional), title of the pull :param str body: (optional), body of the pull request :param str state: (optional), ('open', 'closed') :returns: bool """ data = {'ti...
def reply(self, body): """Reply to this review comment with a new review comment. :param str body: The text of the comment. :returns: The created review comment. :rtype: :class:`~github3.pulls.ReviewComment` """ url = self._build_url('comments', base_url=self.pull_reques...
def add_member(self, login): """Add ``login`` to this team. :returns: bool """ warnings.warn( 'This is no longer supported by the GitHub API, see ' 'https://developer.github.com/changes/2014-09-23-one-more-week' '-before-the-add-team-member-api-breaki...
def add_repo(self, repo): """Add ``repo`` to this team. :param str repo: (required), form: 'user/repo' :returns: bool """ url = self._build_url('repos', repo, base_url=self._api) return self._boolean(self._put(url), 204, 404)