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- ckpts/universal/global_step40/zero/14.mlp.dense_h_to_4h_swiglu.weight/exp_avg.pt +3 -0
- ckpts/universal/global_step40/zero/14.mlp.dense_h_to_4h_swiglu.weight/exp_avg_sq.pt +3 -0
- ckpts/universal/global_step40/zero/14.mlp.dense_h_to_4h_swiglu.weight/fp32.pt +3 -0
- ckpts/universal/global_step40/zero/20.mlp.dense_h_to_4h.weight/exp_avg_sq.pt +3 -0
- ckpts/universal/global_step40/zero/20.mlp.dense_h_to_4h.weight/fp32.pt +3 -0
- ckpts/universal/global_step40/zero/29.vocab_parallel_projection.weight/exp_avg_sq.pt +3 -0
- ckpts/universal/global_step40/zero/9.attention.query_key_value.weight/fp32.pt +3 -0
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venv/lib/python3.10/site-packages/scipy/io/_fast_matrix_market/__init__.py
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1 |
+
# Copyright (C) 2022-2023 Adam Lugowski. All rights reserved.
|
2 |
+
# Use of this source code is governed by the BSD 2-clause license found in
|
3 |
+
# the LICENSE.txt file.
|
4 |
+
# SPDX-License-Identifier: BSD-2-Clause
|
5 |
+
"""
|
6 |
+
Matrix Market I/O with a C++ backend.
|
7 |
+
See http://math.nist.gov/MatrixMarket/formats.html
|
8 |
+
for information about the Matrix Market format.
|
9 |
+
|
10 |
+
.. versionadded:: 1.12.0
|
11 |
+
"""
|
12 |
+
import io
|
13 |
+
import os
|
14 |
+
|
15 |
+
import numpy as np
|
16 |
+
import scipy.sparse
|
17 |
+
from scipy.io import _mmio
|
18 |
+
|
19 |
+
__all__ = ['mminfo', 'mmread', 'mmwrite']
|
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+
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+
PARALLELISM = 0
|
22 |
+
"""
|
23 |
+
Number of threads that `mmread()` and `mmwrite()` use.
|
24 |
+
0 means number of CPUs in the system.
|
25 |
+
Use `threadpoolctl` to set this value.
|
26 |
+
"""
|
27 |
+
|
28 |
+
ALWAYS_FIND_SYMMETRY = False
|
29 |
+
"""
|
30 |
+
Whether mmwrite() with symmetry='AUTO' will always search for symmetry
|
31 |
+
inside the matrix. This is scipy.io._mmio.mmwrite()'s default behavior,
|
32 |
+
but has a significant performance cost on large matrices.
|
33 |
+
"""
|
34 |
+
|
35 |
+
_field_to_dtype = {
|
36 |
+
"integer": "int64",
|
37 |
+
"unsigned-integer": "uint64",
|
38 |
+
"real": "float64",
|
39 |
+
"complex": "complex",
|
40 |
+
"pattern": "float64",
|
41 |
+
}
|
42 |
+
|
43 |
+
|
44 |
+
def _fmm_version():
|
45 |
+
from . import _fmm_core
|
46 |
+
return _fmm_core.__version__
|
47 |
+
|
48 |
+
|
49 |
+
# Register with threadpoolctl, if available
|
50 |
+
try:
|
51 |
+
import threadpoolctl
|
52 |
+
|
53 |
+
class _FMMThreadPoolCtlController(threadpoolctl.LibController):
|
54 |
+
user_api = "scipy"
|
55 |
+
internal_api = "scipy_mmio"
|
56 |
+
|
57 |
+
filename_prefixes = ("_fmm_core",)
|
58 |
+
|
59 |
+
def get_num_threads(self):
|
60 |
+
global PARALLELISM
|
61 |
+
return PARALLELISM
|
62 |
+
|
63 |
+
def set_num_threads(self, num_threads):
|
64 |
+
global PARALLELISM
|
65 |
+
PARALLELISM = num_threads
|
66 |
+
|
67 |
+
def get_version(self):
|
68 |
+
return _fmm_version
|
69 |
+
|
70 |
+
def set_additional_attributes(self):
|
71 |
+
pass
|
72 |
+
|
73 |
+
threadpoolctl.register(_FMMThreadPoolCtlController)
|
74 |
+
except (ImportError, AttributeError):
|
75 |
+
# threadpoolctl not installed or version too old
|
76 |
+
pass
|
77 |
+
|
78 |
+
|
79 |
+
class _TextToBytesWrapper(io.BufferedReader):
|
80 |
+
"""
|
81 |
+
Convert a TextIOBase string stream to a byte stream.
|
82 |
+
"""
|
83 |
+
|
84 |
+
def __init__(self, text_io_buffer, encoding=None, errors=None, **kwargs):
|
85 |
+
super().__init__(text_io_buffer, **kwargs)
|
86 |
+
self.encoding = encoding or text_io_buffer.encoding or 'utf-8'
|
87 |
+
self.errors = errors or text_io_buffer.errors or 'strict'
|
88 |
+
|
89 |
+
def __del__(self):
|
90 |
+
# do not close the wrapped stream
|
91 |
+
self.detach()
|
92 |
+
|
93 |
+
def _encoding_call(self, method_name, *args, **kwargs):
|
94 |
+
raw_method = getattr(self.raw, method_name)
|
95 |
+
val = raw_method(*args, **kwargs)
|
96 |
+
return val.encode(self.encoding, errors=self.errors)
|
97 |
+
|
98 |
+
def read(self, size=-1):
|
99 |
+
return self._encoding_call('read', size)
|
100 |
+
|
101 |
+
def read1(self, size=-1):
|
102 |
+
return self._encoding_call('read1', size)
|
103 |
+
|
104 |
+
def peek(self, size=-1):
|
105 |
+
return self._encoding_call('peek', size)
|
106 |
+
|
107 |
+
def seek(self, offset, whence=0):
|
108 |
+
# Random seeks are not allowed because of non-trivial conversion
|
109 |
+
# between byte and character offsets,
|
110 |
+
# with the possibility of a byte offset landing within a character.
|
111 |
+
if offset == 0 and whence == 0 or \
|
112 |
+
offset == 0 and whence == 2:
|
113 |
+
# seek to start or end is ok
|
114 |
+
super().seek(offset, whence)
|
115 |
+
else:
|
116 |
+
# Drop any other seek
|
117 |
+
# In this application this may happen when pystreambuf seeks during sync(),
|
118 |
+
# which can happen when closing a partially-read stream.
|
119 |
+
# Ex. when mminfo() only reads the header then exits.
|
120 |
+
pass
|
121 |
+
|
122 |
+
|
123 |
+
def _read_body_array(cursor):
|
124 |
+
"""
|
125 |
+
Read MatrixMarket array body
|
126 |
+
"""
|
127 |
+
from . import _fmm_core
|
128 |
+
|
129 |
+
vals = np.zeros(cursor.header.shape, dtype=_field_to_dtype.get(cursor.header.field))
|
130 |
+
_fmm_core.read_body_array(cursor, vals)
|
131 |
+
return vals
|
132 |
+
|
133 |
+
|
134 |
+
def _read_body_coo(cursor, generalize_symmetry=True):
|
135 |
+
"""
|
136 |
+
Read MatrixMarket coordinate body
|
137 |
+
"""
|
138 |
+
from . import _fmm_core
|
139 |
+
|
140 |
+
index_dtype = "int32"
|
141 |
+
if cursor.header.nrows >= 2**31 or cursor.header.ncols >= 2**31:
|
142 |
+
# Dimensions are too large to fit in int32
|
143 |
+
index_dtype = "int64"
|
144 |
+
|
145 |
+
i = np.zeros(cursor.header.nnz, dtype=index_dtype)
|
146 |
+
j = np.zeros(cursor.header.nnz, dtype=index_dtype)
|
147 |
+
data = np.zeros(cursor.header.nnz, dtype=_field_to_dtype.get(cursor.header.field))
|
148 |
+
|
149 |
+
_fmm_core.read_body_coo(cursor, i, j, data)
|
150 |
+
|
151 |
+
if generalize_symmetry and cursor.header.symmetry != "general":
|
152 |
+
off_diagonal_mask = (i != j)
|
153 |
+
off_diagonal_rows = i[off_diagonal_mask]
|
154 |
+
off_diagonal_cols = j[off_diagonal_mask]
|
155 |
+
off_diagonal_data = data[off_diagonal_mask]
|
156 |
+
|
157 |
+
if cursor.header.symmetry == "skew-symmetric":
|
158 |
+
off_diagonal_data *= -1
|
159 |
+
elif cursor.header.symmetry == "hermitian":
|
160 |
+
off_diagonal_data = off_diagonal_data.conjugate()
|
161 |
+
|
162 |
+
i = np.concatenate((i, off_diagonal_cols))
|
163 |
+
j = np.concatenate((j, off_diagonal_rows))
|
164 |
+
data = np.concatenate((data, off_diagonal_data))
|
165 |
+
|
166 |
+
return (data, (i, j)), cursor.header.shape
|
167 |
+
|
168 |
+
|
169 |
+
def _get_read_cursor(source, parallelism=None):
|
170 |
+
"""
|
171 |
+
Open file for reading.
|
172 |
+
"""
|
173 |
+
from . import _fmm_core
|
174 |
+
|
175 |
+
ret_stream_to_close = None
|
176 |
+
if parallelism is None:
|
177 |
+
parallelism = PARALLELISM
|
178 |
+
|
179 |
+
try:
|
180 |
+
source = os.fspath(source)
|
181 |
+
# It's a file path
|
182 |
+
is_path = True
|
183 |
+
except TypeError:
|
184 |
+
is_path = False
|
185 |
+
|
186 |
+
if is_path:
|
187 |
+
path = str(source)
|
188 |
+
if path.endswith('.gz'):
|
189 |
+
import gzip
|
190 |
+
source = gzip.GzipFile(path, 'r')
|
191 |
+
ret_stream_to_close = source
|
192 |
+
elif path.endswith('.bz2'):
|
193 |
+
import bz2
|
194 |
+
source = bz2.BZ2File(path, 'rb')
|
195 |
+
ret_stream_to_close = source
|
196 |
+
else:
|
197 |
+
return _fmm_core.open_read_file(path, parallelism), ret_stream_to_close
|
198 |
+
|
199 |
+
# Stream object.
|
200 |
+
if hasattr(source, "read"):
|
201 |
+
if isinstance(source, io.TextIOBase):
|
202 |
+
source = _TextToBytesWrapper(source)
|
203 |
+
return _fmm_core.open_read_stream(source, parallelism), ret_stream_to_close
|
204 |
+
else:
|
205 |
+
raise TypeError("Unknown source type")
|
206 |
+
|
207 |
+
|
208 |
+
def _get_write_cursor(target, h=None, comment=None, parallelism=None,
|
209 |
+
symmetry="general", precision=None):
|
210 |
+
"""
|
211 |
+
Open file for writing.
|
212 |
+
"""
|
213 |
+
from . import _fmm_core
|
214 |
+
|
215 |
+
if parallelism is None:
|
216 |
+
parallelism = PARALLELISM
|
217 |
+
if comment is None:
|
218 |
+
comment = ''
|
219 |
+
if symmetry is None:
|
220 |
+
symmetry = "general"
|
221 |
+
if precision is None:
|
222 |
+
precision = -1
|
223 |
+
|
224 |
+
if not h:
|
225 |
+
h = _fmm_core.header(comment=comment, symmetry=symmetry)
|
226 |
+
|
227 |
+
try:
|
228 |
+
target = os.fspath(target)
|
229 |
+
# It's a file path
|
230 |
+
return _fmm_core.open_write_file(str(target), h, parallelism, precision)
|
231 |
+
except TypeError:
|
232 |
+
pass
|
233 |
+
|
234 |
+
if hasattr(target, "write"):
|
235 |
+
# Stream object.
|
236 |
+
if isinstance(target, io.TextIOBase):
|
237 |
+
raise TypeError("target stream must be open in binary mode.")
|
238 |
+
return _fmm_core.open_write_stream(target, h, parallelism, precision)
|
239 |
+
else:
|
240 |
+
raise TypeError("Unknown source object")
|
241 |
+
|
242 |
+
|
243 |
+
def _apply_field(data, field, no_pattern=False):
|
244 |
+
"""
|
245 |
+
Ensure that ``data.dtype`` is compatible with the specified MatrixMarket field type.
|
246 |
+
|
247 |
+
Parameters
|
248 |
+
----------
|
249 |
+
data : ndarray
|
250 |
+
Input array.
|
251 |
+
|
252 |
+
field : str
|
253 |
+
Matrix Market field, such as 'real', 'complex', 'integer', 'pattern'.
|
254 |
+
|
255 |
+
no_pattern : bool, optional
|
256 |
+
Whether an empty array may be returned for a 'pattern' field.
|
257 |
+
|
258 |
+
Returns
|
259 |
+
-------
|
260 |
+
data : ndarray
|
261 |
+
Input data if no conversion necessary, or a converted version
|
262 |
+
"""
|
263 |
+
|
264 |
+
if field is None:
|
265 |
+
return data
|
266 |
+
if field == "pattern":
|
267 |
+
if no_pattern:
|
268 |
+
return data
|
269 |
+
else:
|
270 |
+
return np.zeros(0)
|
271 |
+
|
272 |
+
dtype = _field_to_dtype.get(field, None)
|
273 |
+
if dtype is None:
|
274 |
+
raise ValueError("Invalid field.")
|
275 |
+
|
276 |
+
return np.asarray(data, dtype=dtype)
|
277 |
+
|
278 |
+
|
279 |
+
def _validate_symmetry(symmetry):
|
280 |
+
"""
|
281 |
+
Check that the symmetry parameter is one that MatrixMarket allows..
|
282 |
+
"""
|
283 |
+
if symmetry is None:
|
284 |
+
return "general"
|
285 |
+
|
286 |
+
symmetry = str(symmetry).lower()
|
287 |
+
symmetries = ["general", "symmetric", "skew-symmetric", "hermitian"]
|
288 |
+
if symmetry not in symmetries:
|
289 |
+
raise ValueError("Invalid symmetry. Must be one of: " + ", ".join(symmetries))
|
290 |
+
|
291 |
+
return symmetry
|
292 |
+
|
293 |
+
|
294 |
+
def mmread(source):
|
295 |
+
"""
|
296 |
+
Reads the contents of a Matrix Market file-like 'source' into a matrix.
|
297 |
+
|
298 |
+
Parameters
|
299 |
+
----------
|
300 |
+
source : str or file-like
|
301 |
+
Matrix Market filename (extensions .mtx, .mtz.gz)
|
302 |
+
or open file-like object.
|
303 |
+
|
304 |
+
Returns
|
305 |
+
-------
|
306 |
+
a : ndarray or coo_matrix
|
307 |
+
Dense or sparse matrix depending on the matrix format in the
|
308 |
+
Matrix Market file.
|
309 |
+
|
310 |
+
Notes
|
311 |
+
-----
|
312 |
+
.. versionchanged:: 1.12.0
|
313 |
+
C++ implementation.
|
314 |
+
|
315 |
+
Examples
|
316 |
+
--------
|
317 |
+
>>> from io import StringIO
|
318 |
+
>>> from scipy.io import mmread
|
319 |
+
|
320 |
+
>>> text = '''%%MatrixMarket matrix coordinate real general
|
321 |
+
... 5 5 7
|
322 |
+
... 2 3 1.0
|
323 |
+
... 3 4 2.0
|
324 |
+
... 3 5 3.0
|
325 |
+
... 4 1 4.0
|
326 |
+
... 4 2 5.0
|
327 |
+
... 4 3 6.0
|
328 |
+
... 4 4 7.0
|
329 |
+
... '''
|
330 |
+
|
331 |
+
``mmread(source)`` returns the data as sparse matrix in COO format.
|
332 |
+
|
333 |
+
>>> m = mmread(StringIO(text))
|
334 |
+
>>> m
|
335 |
+
<5x5 sparse matrix of type '<class 'numpy.float64'>'
|
336 |
+
with 7 stored elements in COOrdinate format>
|
337 |
+
>>> m.A
|
338 |
+
array([[0., 0., 0., 0., 0.],
|
339 |
+
[0., 0., 1., 0., 0.],
|
340 |
+
[0., 0., 0., 2., 3.],
|
341 |
+
[4., 5., 6., 7., 0.],
|
342 |
+
[0., 0., 0., 0., 0.]])
|
343 |
+
|
344 |
+
This method is threaded.
|
345 |
+
The default number of threads is equal to the number of CPUs in the system.
|
346 |
+
Use `threadpoolctl <https://github.com/joblib/threadpoolctl>`_ to override:
|
347 |
+
|
348 |
+
>>> import threadpoolctl
|
349 |
+
>>>
|
350 |
+
>>> with threadpoolctl.threadpool_limits(limits=2):
|
351 |
+
... m = mmread(StringIO(text))
|
352 |
+
|
353 |
+
"""
|
354 |
+
cursor, stream_to_close = _get_read_cursor(source)
|
355 |
+
|
356 |
+
if cursor.header.format == "array":
|
357 |
+
mat = _read_body_array(cursor)
|
358 |
+
if stream_to_close:
|
359 |
+
stream_to_close.close()
|
360 |
+
return mat
|
361 |
+
else:
|
362 |
+
from scipy.sparse import coo_matrix
|
363 |
+
triplet, shape = _read_body_coo(cursor, generalize_symmetry=True)
|
364 |
+
if stream_to_close:
|
365 |
+
stream_to_close.close()
|
366 |
+
return coo_matrix(triplet, shape=shape)
|
367 |
+
|
368 |
+
|
369 |
+
def mmwrite(target, a, comment=None, field=None, precision=None, symmetry="AUTO"):
|
370 |
+
r"""
|
371 |
+
Writes the sparse or dense array `a` to Matrix Market file-like `target`.
|
372 |
+
|
373 |
+
Parameters
|
374 |
+
----------
|
375 |
+
target : str or file-like
|
376 |
+
Matrix Market filename (extension .mtx) or open file-like object.
|
377 |
+
a : array like
|
378 |
+
Sparse or dense 2-D array.
|
379 |
+
comment : str, optional
|
380 |
+
Comments to be prepended to the Matrix Market file.
|
381 |
+
field : None or str, optional
|
382 |
+
Either 'real', 'complex', 'pattern', or 'integer'.
|
383 |
+
precision : None or int, optional
|
384 |
+
Number of digits to display for real or complex values.
|
385 |
+
symmetry : None or str, optional
|
386 |
+
Either 'AUTO', 'general', 'symmetric', 'skew-symmetric', or 'hermitian'.
|
387 |
+
If symmetry is None the symmetry type of 'a' is determined by its
|
388 |
+
values. If symmetry is 'AUTO' the symmetry type of 'a' is either
|
389 |
+
determined or set to 'general', at mmwrite's discretion.
|
390 |
+
|
391 |
+
Returns
|
392 |
+
-------
|
393 |
+
None
|
394 |
+
|
395 |
+
Notes
|
396 |
+
-----
|
397 |
+
.. versionchanged:: 1.12.0
|
398 |
+
C++ implementation.
|
399 |
+
|
400 |
+
Examples
|
401 |
+
--------
|
402 |
+
>>> from io import BytesIO
|
403 |
+
>>> import numpy as np
|
404 |
+
>>> from scipy.sparse import coo_matrix
|
405 |
+
>>> from scipy.io import mmwrite
|
406 |
+
|
407 |
+
Write a small NumPy array to a matrix market file. The file will be
|
408 |
+
written in the ``'array'`` format.
|
409 |
+
|
410 |
+
>>> a = np.array([[1.0, 0, 0, 0], [0, 2.5, 0, 6.25]])
|
411 |
+
>>> target = BytesIO()
|
412 |
+
>>> mmwrite(target, a)
|
413 |
+
>>> print(target.getvalue().decode('latin1'))
|
414 |
+
%%MatrixMarket matrix array real general
|
415 |
+
%
|
416 |
+
2 4
|
417 |
+
1
|
418 |
+
0
|
419 |
+
0
|
420 |
+
2.5
|
421 |
+
0
|
422 |
+
0
|
423 |
+
0
|
424 |
+
6.25
|
425 |
+
|
426 |
+
Add a comment to the output file, and set the precision to 3.
|
427 |
+
|
428 |
+
>>> target = BytesIO()
|
429 |
+
>>> mmwrite(target, a, comment='\n Some test data.\n', precision=3)
|
430 |
+
>>> print(target.getvalue().decode('latin1'))
|
431 |
+
%%MatrixMarket matrix array real general
|
432 |
+
%
|
433 |
+
% Some test data.
|
434 |
+
%
|
435 |
+
2 4
|
436 |
+
1.00e+00
|
437 |
+
0.00e+00
|
438 |
+
0.00e+00
|
439 |
+
2.50e+00
|
440 |
+
0.00e+00
|
441 |
+
0.00e+00
|
442 |
+
0.00e+00
|
443 |
+
6.25e+00
|
444 |
+
|
445 |
+
Convert to a sparse matrix before calling ``mmwrite``. This will
|
446 |
+
result in the output format being ``'coordinate'`` rather than
|
447 |
+
``'array'``.
|
448 |
+
|
449 |
+
>>> target = BytesIO()
|
450 |
+
>>> mmwrite(target, coo_matrix(a), precision=3)
|
451 |
+
>>> print(target.getvalue().decode('latin1'))
|
452 |
+
%%MatrixMarket matrix coordinate real general
|
453 |
+
%
|
454 |
+
2 4 3
|
455 |
+
1 1 1.00e+00
|
456 |
+
2 2 2.50e+00
|
457 |
+
2 4 6.25e+00
|
458 |
+
|
459 |
+
Write a complex Hermitian array to a matrix market file. Note that
|
460 |
+
only six values are actually written to the file; the other values
|
461 |
+
are implied by the symmetry.
|
462 |
+
|
463 |
+
>>> z = np.array([[3, 1+2j, 4-3j], [1-2j, 1, -5j], [4+3j, 5j, 2.5]])
|
464 |
+
>>> z
|
465 |
+
array([[ 3. +0.j, 1. +2.j, 4. -3.j],
|
466 |
+
[ 1. -2.j, 1. +0.j, -0. -5.j],
|
467 |
+
[ 4. +3.j, 0. +5.j, 2.5+0.j]])
|
468 |
+
|
469 |
+
>>> target = BytesIO()
|
470 |
+
>>> mmwrite(target, z, precision=2)
|
471 |
+
>>> print(target.getvalue().decode('latin1'))
|
472 |
+
%%MatrixMarket matrix array complex hermitian
|
473 |
+
%
|
474 |
+
3 3
|
475 |
+
3.0e+00 0.0e+00
|
476 |
+
1.0e+00 -2.0e+00
|
477 |
+
4.0e+00 3.0e+00
|
478 |
+
1.0e+00 0.0e+00
|
479 |
+
0.0e+00 5.0e+00
|
480 |
+
2.5e+00 0.0e+00
|
481 |
+
|
482 |
+
This method is threaded.
|
483 |
+
The default number of threads is equal to the number of CPUs in the system.
|
484 |
+
Use `threadpoolctl <https://github.com/joblib/threadpoolctl>`_ to override:
|
485 |
+
|
486 |
+
>>> import threadpoolctl
|
487 |
+
>>>
|
488 |
+
>>> target = BytesIO()
|
489 |
+
>>> with threadpoolctl.threadpool_limits(limits=2):
|
490 |
+
... mmwrite(target, a)
|
491 |
+
|
492 |
+
"""
|
493 |
+
from . import _fmm_core
|
494 |
+
|
495 |
+
if isinstance(a, list) or isinstance(a, tuple) or hasattr(a, "__array__"):
|
496 |
+
a = np.asarray(a)
|
497 |
+
|
498 |
+
if symmetry == "AUTO":
|
499 |
+
if ALWAYS_FIND_SYMMETRY or (hasattr(a, "shape") and max(a.shape) < 100):
|
500 |
+
symmetry = None
|
501 |
+
else:
|
502 |
+
symmetry = "general"
|
503 |
+
|
504 |
+
if symmetry is None:
|
505 |
+
symmetry = _mmio.MMFile()._get_symmetry(a)
|
506 |
+
|
507 |
+
symmetry = _validate_symmetry(symmetry)
|
508 |
+
cursor = _get_write_cursor(target, comment=comment,
|
509 |
+
precision=precision, symmetry=symmetry)
|
510 |
+
|
511 |
+
if isinstance(a, np.ndarray):
|
512 |
+
# Write dense numpy arrays
|
513 |
+
a = _apply_field(a, field, no_pattern=True)
|
514 |
+
_fmm_core.write_body_array(cursor, a)
|
515 |
+
|
516 |
+
elif scipy.sparse.issparse(a):
|
517 |
+
# Write sparse scipy matrices
|
518 |
+
a = a.tocoo()
|
519 |
+
|
520 |
+
if symmetry is not None and symmetry != "general":
|
521 |
+
# A symmetric matrix only specifies the elements below the diagonal.
|
522 |
+
# Ensure that the matrix satisfies this requirement.
|
523 |
+
from scipy.sparse import coo_array
|
524 |
+
lower_triangle_mask = a.row >= a.col
|
525 |
+
a = coo_array((a.data[lower_triangle_mask],
|
526 |
+
(a.row[lower_triangle_mask],
|
527 |
+
a.col[lower_triangle_mask])), shape=a.shape)
|
528 |
+
|
529 |
+
data = _apply_field(a.data, field)
|
530 |
+
_fmm_core.write_body_coo(cursor, a.shape, a.row, a.col, data)
|
531 |
+
|
532 |
+
else:
|
533 |
+
raise ValueError("unknown matrix type: %s" % type(a))
|
534 |
+
|
535 |
+
|
536 |
+
def mminfo(source):
|
537 |
+
"""
|
538 |
+
Return size and storage parameters from Matrix Market file-like 'source'.
|
539 |
+
|
540 |
+
Parameters
|
541 |
+
----------
|
542 |
+
source : str or file-like
|
543 |
+
Matrix Market filename (extension .mtx) or open file-like object
|
544 |
+
|
545 |
+
Returns
|
546 |
+
-------
|
547 |
+
rows : int
|
548 |
+
Number of matrix rows.
|
549 |
+
cols : int
|
550 |
+
Number of matrix columns.
|
551 |
+
entries : int
|
552 |
+
Number of non-zero entries of a sparse matrix
|
553 |
+
or rows*cols for a dense matrix.
|
554 |
+
format : str
|
555 |
+
Either 'coordinate' or 'array'.
|
556 |
+
field : str
|
557 |
+
Either 'real', 'complex', 'pattern', or 'integer'.
|
558 |
+
symmetry : str
|
559 |
+
Either 'general', 'symmetric', 'skew-symmetric', or 'hermitian'.
|
560 |
+
|
561 |
+
Notes
|
562 |
+
-----
|
563 |
+
.. versionchanged:: 1.12.0
|
564 |
+
C++ implementation.
|
565 |
+
|
566 |
+
Examples
|
567 |
+
--------
|
568 |
+
>>> from io import StringIO
|
569 |
+
>>> from scipy.io import mminfo
|
570 |
+
|
571 |
+
>>> text = '''%%MatrixMarket matrix coordinate real general
|
572 |
+
... 5 5 7
|
573 |
+
... 2 3 1.0
|
574 |
+
... 3 4 2.0
|
575 |
+
... 3 5 3.0
|
576 |
+
... 4 1 4.0
|
577 |
+
... 4 2 5.0
|
578 |
+
... 4 3 6.0
|
579 |
+
... 4 4 7.0
|
580 |
+
... '''
|
581 |
+
|
582 |
+
|
583 |
+
``mminfo(source)`` returns the number of rows, number of columns,
|
584 |
+
format, field type and symmetry attribute of the source file.
|
585 |
+
|
586 |
+
>>> mminfo(StringIO(text))
|
587 |
+
(5, 5, 7, 'coordinate', 'real', 'general')
|
588 |
+
"""
|
589 |
+
cursor, stream_to_close = _get_read_cursor(source, 1)
|
590 |
+
h = cursor.header
|
591 |
+
cursor.close()
|
592 |
+
if stream_to_close:
|
593 |
+
stream_to_close.close()
|
594 |
+
return h.nrows, h.ncols, h.nnz, h.format, h.field, h.symmetry
|
venv/lib/python3.10/site-packages/scipy/io/_fast_matrix_market/__pycache__/__init__.cpython-310.pyc
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|
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|
|
venv/lib/python3.10/site-packages/scipy/io/matlab/tests/data/japanese_utf8.txt
ADDED
@@ -0,0 +1,5 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
Japanese:
|
2 |
+
すべての人間は、生まれながらにして自由であり、
|
3 |
+
かつ、尊厳と権利と について平等である。
|
4 |
+
人間は、理性と良心とを授けられており、
|
5 |
+
互いに同胞の精神をもって行動しなければならない。
|
venv/lib/python3.10/site-packages/scipy/io/matlab/tests/data/little_endian.mat
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|
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|
venv/lib/python3.10/site-packages/scipy/io/matlab/tests/data/miuint32_for_miint32.mat
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|
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