BlockIndexRanges(cl_context, indices, ranges)¶
Convenience class for working with blocks of a global array.
A list of not necessarily continuous or increasing integers representing the indices of a global array. The individual blocks are delimited using
A list of nondecreasing integers used to index into
indices. A block \(i\) can be retrieved using indices[ranges[i]:ranges[i + 1]].
MatrixBlockIndexRanges(cl_context, row, col)¶
Keep track of different ways to index into matrix blocks.
Retrieve a block from a linear representation of the matrix blocks. A linear representation of the matrix blocks can be obtained, or should be consistent with
i = index.linear_row_indices() j = index.linear_col_indices() linear_blks = global_mat[i, j] for k in range(index.nblocks): assert np.allclose(index.block_take(linear_blks, k), index.take(global_mat, k))
x – a 1D
i – block index.
requested block, reshaped into a 2D array.
Transfer data to the host. Only the initial given data is transfered, not the arrays returned by
This command should install
pip install sumpy
You may need to run this with sudo. If you don’t already have pip, run this beforehand:
curl -O https://raw.github.com/pypa/pip/master/contrib/get-pip.py python get-pip.py
For a more manual installation, download the source, unpack it, and say:
python setup.py install
In addition, you need to have
sumpy prefers using SymEngine but falls back to sympy if it
detects that SymEngine is not installed. To force the use of a particular
backend, set the environment variable SUMPY_FORCE_SYMBOLIC_BACKEND to
symengine or sympy.
sumpy is licensed to you under the MIT/X Consortium license:
Copyright (c) 2012-16 Andreas Klöckner
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Andreas Klöckner’s work on
sumpy was supported in part by
US Navy ONR grant number N00014-14-1-0117
the US National Science Foundation under grant numbers DMS-1418961 and CCF-1524433.
AK also gratefully acknowledges a hardware gift from Nvidia Corporation. The views and opinions expressed herein do not necessarily reflect those of the funding agencies.