Configuration and Dependencies#
Configuration#
Tip
pressio-ops is header-only, so it does not need to be precompiled and linked to.
Warning
To use pressio-ops, you need at least a C++17 compiler.
Dependencies#
Some parts contain code that are specific to third-party libraries (TPLs). Currently, the list of TPLs supported is shown below:
TPL Name |
Optional/Required |
Version Known to Work/run in CI |
|---|---|---|
Eigen |
Required |
3.4.0 |
Trilinos |
Optional |
commits: 0dc4553, 5bbda25 |
MPI |
Optional |
– |
Kokkos |
Optional |
4.4.01 |
BLAS |
Optional |
– |
LAPACK |
Optional |
– |
GoogleTest |
Optional |
1.14.0 |
Eigen is the only required dependency because it is the default choice for instantiating the ROM data structures and solving the (dense) ROM problem used in pressio.
Macros#
Enabling/disabling specific dependencies can be done via the following macros:
Variable |
Description |
Default |
|---|---|---|
|
self-explanatory |
|
|
self-explanatory |
|
|
self-explanatory |
|
|
self-explanatory |
|
Obviously, the choice of which TPLs to enable is related to
your application’s dependency requirements.
For example, if you have an application that relies on
Trilinos data structures and want to use pressio-ops,
then it makes sense to enable the Trilinos dependency.
On the contrary, if you have an application that relies only on
Eigen data structures, then it makes sense to only leave only Eigen on
and disable the rest.
Also, we note that some of the macros listed above are connected.
For example, if we enable Trilinos then pressio-ops automatically
enables also Kokkos, BLAS, LAPACK and MPI.
Building#
pressio-ops is a header-only library, and does not need to be built or installed.
However, one may use CMake to configure and build the tests by setting the -D PRESSIO_OPS_ENABLE_TESTS=ON CMake variable.
When configuring with CMake, all of the above macros may be passed as CMake variables.
Important
Recall that to set a keyword in CMake you used the syntax -Dkeyword_name.
For example: -DPRESSIO_ENABLE_TPL_MPI=ON