gpu - skip unneeded restrictions in OpApply

Merge pull request #1586 from CEED/jeremy/gpu-points-rstr-fix

rstr - transpose AtPoints restriction fixes

rstr - transpose AtPoints restriction fixes

Merge pull request #1578 from CEED/jeremy/restriction-points-gpu

GPU Restriction AtPoints

cuda - add ElemRestrictionAtPoints

Drop JiT Guards in Most QF Source (#1540)

* backend - use pragma once

* gallery - drop source header guards

* ex - drop some qfunction source header guards

* fluids - drop guards on all sin

Drop JiT Guards in Most QF Source (#1540)

* backend - use pragma once

* gallery - drop source header guards

* ex - drop some qfunction source header guards

* fluids - drop guards on all singly included headers

* jit - drop most guards on backend JiT files

* sycl - drop extra header guards

* jit - enable #pragma once for QF source

* fluids - use #pragma once for util/helper qf source

* test - check different multiple includes

* fluids - fix odd include

* jit - update interface for building JiT string from multiple files

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Merge pull request #1537 from CEED/jeremy/pragma-once

Use #pragma once for non-JiT headers

minor - update copyright headers

Merge pull request #1536 from CEED/jeremy/tidy-fix

tidy - fix argument name mismatch

tidy - fix argument name mismatch

Merge pull request #1521 from CEED/jeremy/cov-fixes

Reduce Code Duplication

backend - use const for backend rstr data, should never change after set

backend - use new user data copy utility

backend - same memory owned/borrowed strategy for all impls

Merge pull request #1488 from CEED/jeremy/const-path

Const for CeedQFunctionGetSourcePath

internal: const for source paths

Add const to CeedQFunctionLoadSourceToBuffer output argument. If we
had Result, this would look like

let const source_buffer = CeedQFunctionLoadSourceToBuffer()?;

internal: const for source paths

Add const to CeedQFunctionLoadSourceToBuffer output argument. If we
had Result, this would look like

let const source_buffer = CeedQFunctionLoadSourceToBuffer()?;

The caller is free to cast in the const when passing the output variable
if they want this semantic:

let mut source_buffer = CeedQFunctionLoadSourceToBuffer()?;

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Merge pull request #1487 from CEED/jeremy/field-name-const

Add const to GetName functions

backend - add const to QF name acessor

Merge pull request #1450 from CEED/sjg/jit-speedup-dev

Refactor GPU-backend element restriction source to only compile the required kernels, and do so lazily at first apply

Lazily compile GPU diagonal/point-block diagonal assembly kernels as needed

Also fixes CEED_SIZE -> USE_CEEDSIZE definition.

Merge pull request #1302 from CEED/sjg/gpu-restriction-dev

GPU element restriction for `CEED_RESTRICTION_ORIENTED` and `CEED_RESTRICTION_CURL_ORIENTED`

Add deterministic element restriction transpose GPU kernels for oriented and curl-oriented restrictions

Operator full assembly and diagonal assembly for cuda-ref and hip-ref backends for H(div) and H(curl) elements

Initial commit for cuda-ref and hip-ref backend support for oriented and curl-oriented element restrictions

For now, the element restriction transpose for oriented or curl-oriented cases is always n

Initial commit for cuda-ref and hip-ref backend support for oriented and curl-oriented element restrictions

For now, the element restriction transpose for oriented or curl-oriented cases is always non-deterministic.

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