ci: Add color for diffs (#1067)

fluids: Fix Ek_tot underflow bug (#1069)

fluids: Refactor STG wall distance variable

- Needless shortening.
- Confused me when debugging even though I wrote the code myself...

fluids: Fix STG Ek_tot calculation bug

When the spectrum is small enough, Ek_tot can be zero, causing a
divide-by-zero NaN, which then corrupts the calculation of the velocity
fluctuations later dow

fluids: Fix STG Ek_tot calculation bug

When the spectrum is small enough, Ek_tot can be zero, causing a
divide-by-zero NaN, which then corrupts the calculation of the velocity
fluctuations later down the line.

Originally found during OLCF Crusher Hackathon 4

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Merge pull request #1040 from CEED/jed/emscripten-build

emscripten build

ci - add color for diffs

Makefile: add custom executable suffixes for emscripten

emcc looks for the output suffix .wasm when linking executables.

This now builds cleanly:

$ emmake make STATIC=1 OPT=-O build/ex2-surface.wa

Makefile: add custom executable suffixes for emscripten

emcc looks for the output suffix .wasm when linking executables.

This now builds cleanly:

$ emmake make STATIC=1 OPT=-O build/ex2-surface.wasm
[...]
$ wasmer run build/ex2-surface.wasm -- -s 32767
[...]
Exact mesh surface area : 6
Computed mesh surface area : 5.9548265118955
Surface area error : -0.04517348810445

Increasing the size causes calloc to fail, likely to do some default
memory limits that I haven't worked out yet.

Emscripten docs:

https://emscripten.org/docs/compiling/Building-Projects.html#building-projects

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Makefile: skip -Wl,-rpath when using STATIC=1

Merge pull request #1066 from CEED/jeremy/lazy-qf

Lazy access of qf kernel name and path

qf - lazy access of qf kernel name and path

Change the initialization logic for `useCollograd`. (#1021)

* Change the initialization logic for `useCollograd`.

* Guard useCollograd for 3D only.

* Propagate `useCollograd` change to `hip-ge

Change the initialization logic for `useCollograd`. (#1021)

* Change the initialization logic for `useCollograd`.

* Guard useCollograd for 3D only.

* Propagate `useCollograd` change to `hip-gen`.

* Update backends/hip-gen/ceed-hip-gen-operator-build.cpp

* Propagate changes to `hig-gen`.

* Revert redimensioning of `r_tt`.

Co-authored-by: Jed Brown <jed@jedbrown.org>

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Fix t568 bug (#1065)

* Add multi-component apply QFunction to t568

* junit.py: Add t568 back to GPU backend testing

Merge pull request #1061 from CEED/jed/noether-cuda

ci: use noether for CUDA

ci: patch occa-1.1.0 for spurious sys/sysctl.h

t568-operator: fix input order and make test handle nan; skip on broken backends

if (nan < constant) is always false. This test had a memory error
causing it to always compute nan in both the libcee

t568-operator: fix input order and make test handle nan; skip on broken backends

if (nan < constant) is always false. This test had a memory error
causing it to always compute nan in both the libceed and reference
values. This conditional ensures that output will print in such cases.

This test is BROKEN on /gpu/cuda/gen and /gpu/hip/*. This will need to
be addressed in a future issue.

Reported-by: Natalie Beams <nbeams@icl.utk.edu>

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ci: use Noether for CUDA, handle CUDA on Debian CUDA_DIR=/usr

fix XSMM description

examples/petsc: fix missing PetscFunctionBegin

Fluids - Blasius: Some Minor Modifications (#1063)

* Fluids - blasius: default T_wall = T_inf = 288

* Fluids - blasius: break when Chebyshev solve diverges

* Fluids - blasius: add prefix for C

Fluids - Blasius: Some Minor Modifications (#1063)

* Fluids - blasius: default T_wall = T_inf = 288

* Fluids - blasius: break when Chebyshev solve diverges

* Fluids - blasius: add prefix for Chebyshev snes solve

* Fluids - blasius: N_Chebyshev -> n_chebyshev

* Update examples/fluids/tests-output/blasius_test.yaml

Co-authored-by: Jed Brown <jed@jedbrown.org>

* Fluids - blasius: Modify the parameters in the regression test

* examples/fluids: Blasius solution is variable density

We use the ideal gas relation that density ~ 1/enthalpy when held at
constant pressure.

* examples/fluids: Blasius slower growth factor

* examples/fluids: fix Chebyshev on GPU

and close memory leak

Co-authored-by: Jed Brown <jed@jedbrown.org>

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Merge pull request #1058 from CEED/jeremy/noether-ci

LIBXSMM CI Update

ci - newer xsmm for ci

Icl/magma ntgemm (#1060)

* tuning data and driver for the non-tensor gemm

* header

* update magma non-tensor sgemm/dgemm to use the gemm selector

* add cpp files for the magma backend

*

Icl/magma ntgemm (#1060)

* tuning data and driver for the non-tensor gemm

* header

* update magma non-tensor sgemm/dgemm to use the gemm selector

* add cpp files for the magma backend

* minor fix

* define CEED_INTERN for every function instead of a block definition

* include tuning data for CUDA or HIP only

* recent tuning data for a100 and mi250x

* style

* remove unused declarations

* expand tuning data for v100 and mi100

* switch to std array instead of std vector for individual records

* choose between gfx90a and gfx908 for HIP

* bug fix: choose between magma and vendor blas in non-batch mode

* style

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Merge pull request #1053 from CEED/natalie/fix-magma-jit-mem

Fix small memory leaks in JIT source code management

fluids: Fix time label for strong STG #1057

Merge pull request #1059 from CEED/leila/fix-blasius-test

Fluids - Fix blasius test

Fluids - fix blasius test