[ET Trac] #2922: CarpetX does not compile with CUDA 12.9

[Steven R. Brandt]

#2922: CarpetX does not compile with CUDA 12.9

 Reporter: Steven R. Brandt
   Status: new
Milestone: ET_2026_05
  Version: 
     Type: bug
 Priority: major
Component: CarpetX

Comment (by Steven R. Brandt):

I have already provided the workaround in the hack/vect_any branch, but here it is again:

```

diff --git a/Arith/src/vect.hxx b/Arith/src/vect.hxx
index 302833da..c547bb46 100644
--- a/Arith/src/vect.hxx
+++ b/Arith/src/vect.hxx
@@ -638,6 +638,12 @@ template <typename T, int D> struct vect {
                 zero<T>()(), x);
   }

+  friend constexpr ARITH_INLINE ARITH_DEVICE ARITH_HOST auto /*bool*/
+  vect_any(const vect &x) {
+    return fold([](const T &a, const T &b) ARITH_INLINE { return a || b; },
+                zero<T>()(), x);
+  }
+
   friend constexpr ARITH_INLINE ARITH_DEVICE ARITH_HOST auto /*bool*/
   allisfinite(const vect &x) {
     return all(
diff --git a/CarpetX/src/io_openpmd.cxx b/CarpetX/src/io_openpmd.cxx
index 536a0749..a84bcbdb 100644
--- a/CarpetX/src/io_openpmd.cxx
+++ b/CarpetX/src/io_openpmd.cxx
@@ -284,7 +284,7 @@ struct carpetx_openpmd_t {
     constexpr friend bool operator!=(const box_t &x, const box_t &y) {
       return !(x == y);
     }
-    constexpr bool empty() const { return any(hi < lo); }
+    constexpr bool empty() const { return vect_any(hi < lo); }
     constexpr Arith::vect<T, D> shape() const {
       Arith::vect<T, D> sh;
       for (std::size_t d = 0; d < D; ++d)
@@ -1248,7 +1248,7 @@ void carpetx_openpmd_t::InputOpenPMD(const cGH *const cctkGH,
                   for (int j = extbox.lo[1]; j < extbox.hi[1]; ++j) {
                     for (int i = extbox.lo[0]; i < extbox.hi[0]; ++i) {
                       const Arith::vect<int, dim> I{i, j, k};
-                      if (any(I < box.lo || I >= box.hi))
+                      if (vect_any(I < box.lo || I >= box.hi))
                         memcpy(cactus_var_ptr + (cactus_di * i + cactus_dj * j +
                                                  cactus_dk * k) *
                                                     vartypesize,

```

--
Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2922/carpetx-does-not-compile-with-cuda-129
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