Added a memory window pointer component to TensorNetworkReq

Signed-off-by: Dmitry I. Lyakh <quant4me@gmail.com>

src/runtime/executor/cuquantum/cuquantum_executor.cu

@@ -46,6 +46,7 @@ namespace runtime {
 struct TensorDescriptor {
  std::vector<int32_t> modes;   //indices associated with tensor dimensions
  std::vector<int64_t> extents; //tensor dimension extents
+ std::vector<int64_t> strides; //tensor dimension strides (optional)
  void * body_ptr = nullptr;    //pointer to the tensor body image
  std::size_t volume = 0;       //tensor body volume
  cudaDataType_t data_type;     //tensor element data type
@@ -61,6 +62,7 @@ struct TensorNetworkReq {
  cutensornetContractionPlan_t comp_plan;
  cudaStream_t stream;
  cutensornetComputeType_t compute_type;
+ void * memory_window_ptr = nullptr;
  TensorNetworkQueue::ExecStat exec_status = TensorNetworkQueue::ExecStat::Idle;
 };
 

src/runtime/executor/graph_executors/lazy/graph_executor_lazy.cpp

 /** ExaTN:: Tensor Runtime: Tensor graph executor: Lazy
-REVISION: 2021/12/27
+REVISION: 2021/12/29
 
 Copyright (C) 2018-2021 Dmitry Lyakh
 Copyright (C) 2018-2021 Oak Ridge National Laboratory (UT-Battelle)
@@ -290,13 +290,13 @@ void LazyGraphExecutor::execute(TensorNetworkQueue & tensor_network_queue) {
       int error_code = 0;
       const auto current = tensor_network_queue.getCurrent();
       const auto exec_handle = current->second;
-      auto exec_stat = cuquantum_executor_->sync(exec_handle,&error_code,false);
+      auto exec_stat = cuquantum_executor_->sync(exec_handle,&error_code,false); //this call will progress tensor network execution
       assert(error_code == 0);
       if(exec_stat == TensorNetworkQueue::ExecStat::None){
         exec_stat = cuquantum_executor_->execute(current->first,exec_handle);
         if(exec_stat != TensorNetworkQueue::ExecStat::None){
-         auto prev_exec_stat = tensor_network_queue.updateExecStatus(exec_handle,exec_stat);
-         std::cout << "#DEBUG(exatn::runtime::LazyGraphExecutor::execute): Submitted tensor network to cuQuantum\n";
+          auto prev_exec_stat = tensor_network_queue.updateExecStatus(exec_handle,exec_stat);
+          std::cout << "#DEBUG(exatn::runtime::LazyGraphExecutor::execute): Submitted tensor network to cuQuantum\n";
         }
         not_over = tensor_network_queue.next();
       }else if(exec_stat == TensorNetworkQueue::ExecStat::Completed){