Add LGPU with single GPU backend

pennylane_lightning/core/src/simulators/lightning_gpu/utils/DataBuffer.hpp

@@ -1,3 +1,17 @@
+// Copyright 2022-2023 Xanadu Quantum Technologies Inc.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 #pragma once
 
 #include "DevTag.hpp"
@@ -159,7 +173,7 @@
             "Sizes do not match for GPU data. Please ensure the source "
             "buffer is not larger than the destination buffer");
         if (async) {
             PL_CUDA_IS_SUCCESS(cudaMemcpyAsync(
                 getData(), gpu_in, sizeof(GPUDataT) * getLength(),
                 cudaMemcpyDeviceToDevice, getStream()));
         } else {
@@ -189,7 +203,7 @@
             "Sizes do not match for host & GPU data. Please ensure the source "
             "buffer is not larger than the destination buffer");
         if (async) {
             PL_CUDA_IS_SUCCESS(cudaMemcpyAsync(
                 getData(), host_in, sizeof(GPUDataT) * getLength(),
                 cudaMemcpyHostToDevice, getStream()));
         } else {
@@ -215,7 +229,7 @@
                                           sizeof(GPUDataT) * getLength(),
                                           cudaMemcpyDefault));
         } else {
             PL_CUDA_IS_SUCCESS(cudaMemcpyAsync(
                 host_out, getData(), sizeof(GPUDataT) * getLength(),
                 cudaMemcpyDeviceToHost, getStream()));
         }

pennylane_lightning/core/src/simulators/lightning_gpu/utils/DevTag.hpp

@@ -1,3 +1,17 @@
+// Copyright 2022-2023 Xanadu Quantum Technologies Inc.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 #pragma once
 
 #include "cuError.hpp"

pennylane_lightning/core/src/simulators/lightning_gpu/utils/DevicePool.hpp

@@ -1,3 +1,17 @@
+// Copyright 2022-2023 Xanadu Quantum Technologies Inc.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 #pragma once
 
 #include "cuda.h"

pennylane_lightning/core/src/simulators/lightning_gpu/utils/LinearAlg.hpp

@@ -1,3 +1,17 @@
+// Copyright 2022-2023 Xanadu Quantum Technologies Inc. and contributors.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 #pragma once
 
 #include <functional>

pennylane_lightning/core/src/simulators/lightning_gpu/utils/cuError.hpp

@@ -1,8 +1,4 @@
-
-// Adapted from JET: https://github.com/XanaduAI/jet.git
-// and from Lightning: https://github.com/PennylaneAI/pennylane-lightning.git
-
-// Copyright 2022-2023 Xanadu Quantum Technologies Inc. and contributors.
+// Copyright 2022-2023 Xanadu Quantum Technologies Inc.
 
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -15,8 +11,11 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+
+// Adapted from JET: https://github.com/XanaduAI/jet.git
+// and from Lightning: https://github.com/PennylaneAI/pennylane-lightning.git
 /**
- * @file cuda_helpers.hpp
+ * @file cuError.hpp
  */
 
 #pragma once

pennylane_lightning/core/src/simulators/lightning_gpu/utils/cuda_helpers.hpp

@@ -1,7 +1,4 @@
-// Adapted from JET: https://github.com/XanaduAI/jet.git
-// and from Lightning: https://github.com/PennylaneAI/pennylane-lightning.git
-
-// Copyright 2022-2023 Xanadu Quantum Technologies Inc. and contributors.
+// Copyright 2022-2023 Xanadu Quantum Technologies Inc.
 
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -14,6 +11,9 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+
+// Adapted from JET: https://github.com/XanaduAI/jet.git
+// and from Lightning: https://github.com/PennylaneAI/pennylane-lightning.git
 /**
  * @file cuda_helpers.hpp
  */