Wolfram Language Paclet Repository
Community-contributed installable additions to the Wolfram Language
Wolfram`TensorNetworks`
OptimalContractionPath  |
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Details and Options
Examples
(26)
Basic Examples
(4)
Find an optimal path for a small random tensor network. The default cost function is "size":
In[1]:=
tn=RandomTensorNetwork[{4,5},3];OptimalContractionPath[tn]
Out[1]=
{{2,3},{2,3},{1,2}}
Optimize for floating-point operations instead of largest intermediate-tensor size:
In[1]:=
tn=RandomTensorNetwork[{4,5},3];OptimalContractionPath[tn,Method"flops"]
Out[1]=
{{3,5},{2,4},{1,3},{1,2}}
Disallow outer-product pairs during the search:
In[1]:=
tn=RandomTensorNetwork[{4,5},3];OptimalContractionPath[tn,"AllowOuterProducts"False]
Out[1]=
{{2,3},{2,3},{1,2}}
Use the low-level Association form (dimensions, indices, contractions) for the same calculation:
In[1]:=
OptimalContractionPath[Association["Dimensions"{{2,3},{3,4},{4,2}},"Indices"{{i,j},{j,k},{k,i}},"Contractions"{{{i,i}},{{j,j}},{{k,k}}}]]
Out[1]=
{{2,3},{1,2}}
Scope
(12)
Options
(5)
Applications
(2)
Properties & Relations
(3)
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