[eigen] Eigen tensor module

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To: "eigen@xxxxxxxxxxxxxxxxxxx" <eigen@xxxxxxxxxxxxxxxxxxx>
Subject: [eigen] Eigen tensor module
From: "Peterka, Thomas" <tpeterka@xxxxxxxxxxx>
Date: Fri, 25 Oct 2019 16:12:41 +0000
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Thread-topic: Eigen tensor module

Hello,

Is there any way to give the rank of an Eigen tensor at run time, or are there any plans to make this a dynamic run-time parameter? The tensor module would be extremely useful for me if not for the limitation that the rank needs to be specified as compile-time template parameter. I am unable to use Eigen tensors for a generic n-dimensional application where I don’t know the tensor rank in advance.

Please let me know if I’m missing something or if there are any future plans to change this? The boost tensor module, for example, has dynamic ranks and sizes:

https://www.boost.org/doc/libs/develop/libs/numeric/ublas/doc/tensor.html

Thanks,

Tom

-----------------
Tom Peterka
Mathematics and Computer Science Division
Argonne National Laboratory
9700 S. Cass Ave.
Lemont, IL 60439
Bldg 240, Rm 2148
e-mail: tpeterka@xxxxxxxxxxx
web: www.mcs.anl.gov/~tpeterka
phone: 630-252-7198

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