rocm: make amdgpu_target sticky (#34591)

The sticky property will prevent clingo from changing the amdgpu_target
to work around conflicts. This is the same behaviour as was adopted for
cuda_arch in 055c9d125d.

lib/spack/spack/build_systems/rocm.py

@@ -132,6 +132,7 @@ class ROCmPackage(PackageBase):
         "amdgpu_target",
         description="AMD GPU architecture",
         values=spack.variant.any_combination_of(*amdgpu_targets),
+        sticky=True,
         when="+rocm",
     )
 

var/spack/repos/builtin/packages/rccl/package.py

@@ -101,7 +101,7 @@ class Rccl(CMakePackage):
 
     amdgpu_targets = ROCmPackage.amdgpu_targets
 
-    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets))
+    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets), sticky=True)
     variant(
         "build_type",
         default="Release",

var/spack/repos/builtin/packages/rocalution/package.py

@@ -103,7 +103,7 @@ class Rocalution(CMakePackage):
 
     amdgpu_targets = ROCmPackage.amdgpu_targets
 
-    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets))
+    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets), sticky=True)
     variant(
         "build_type",
         default="Release",

var/spack/repos/builtin/packages/rocblas/package.py

@@ -101,7 +101,7 @@ class Rocblas(CMakePackage):
 
     amdgpu_targets = ROCmPackage.amdgpu_targets
 
-    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets))
+    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets), sticky=True)
     variant("tensile", default=True, description="Use Tensile as a backend")
     variant(
         "build_type",

var/spack/repos/builtin/packages/rocfft/package.py

@@ -104,8 +104,10 @@ class Rocfft(CMakePackage):
         values=("Release", "Debug", "RelWithDebInfo"),
         description="CMake build type",
     )
-    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets))
-    variant("amdgpu_target_sram_ecc", values=auto_or_any_combination_of(*amdgpu_targets))
+    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets), sticky=True)
+    variant(
+        "amdgpu_target_sram_ecc", values=auto_or_any_combination_of(*amdgpu_targets), sticky=True
+    )
 
     depends_on("cmake@3.16:", type="build", when="@4.5.0:")
     depends_on("cmake@3.5:", type="build")

var/spack/repos/builtin/packages/rocprim/package.py

@@ -95,7 +95,7 @@ class Rocprim(CMakePackage):
 
     amdgpu_targets = ROCmPackage.amdgpu_targets
 
-    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets))
+    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets), sticky=True)
     variant(
         "build_type",
         default="Release",

var/spack/repos/builtin/packages/rocrand/package.py

@@ -101,7 +101,7 @@ class Rocrand(CMakePackage):
 
     amdgpu_targets = ROCmPackage.amdgpu_targets
 
-    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets))
+    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets), sticky=True)
     variant(
         "build_type",
         default="Release",

var/spack/repos/builtin/packages/rocsolver/package.py

@@ -23,7 +23,7 @@ class Rocsolver(CMakePackage):
 
     amdgpu_targets = ROCmPackage.amdgpu_targets
 
-    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets))
+    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets), sticky=True)
     variant(
         "optimal",
         default=True,

var/spack/repos/builtin/packages/rocsparse/package.py

@@ -25,7 +25,7 @@ class Rocsparse(CMakePackage):
 
     amdgpu_targets = ROCmPackage.amdgpu_targets
 
-    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets))
+    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets), sticky=True)
     variant(
         "build_type",
         default="Release",

var/spack/repos/builtin/packages/rocthrust/package.py

@@ -100,7 +100,7 @@ class Rocthrust(CMakePackage):
 
     # the rocthrust library itself is header-only, but the build_type and amdgpu_target
     # are relevant to the test client
-    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets))
+    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets), sticky=True)
     variant(
         "build_type",
         default="Release",

var/spack/repos/builtin/packages/rocwmma/package.py

@@ -35,7 +35,7 @@ class Rocwmma(CMakePackage):
     # releases
 
     amdgpu_targets = ("gfx908:xnack-", "gfx90a", "gfx90a:xnack-", "gfx90a:xnack+")
-    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets))
+    variant("amdgpu_target", values=auto_or_any_combination_of(*amdgpu_targets), sticky=True)
     variant(
         "build_type",
         default="Release",