Add QObj gen customization point to AER backend

This allows for general usage of this backend beside the default builtin qobj compiler. Signed-off-by: Thien Nguyen <thien.md.nguyen@gmail.com>
eclipse · May 8, 2023 · 05164c1 · 05164c1
1 parent 1eadf8a
commit 05164c1
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/quantum/plugins/ibm/aer/accelerator/aer_accelerator.cpp b/quantum/plugins/ibm/aer/accelerator/aer_accelerator.cpp
@@ -110,8 +110,14 @@ void AerAccelerator::initialize(const HeterogeneousMap &params) {
   noise_model.clear();
   m_simtype = "qasm";
   connectivity.clear();
-
-  xacc_to_qobj = xacc::getCompiler("qobj");
+  if (params.stringExists("qobj-compiler") &&
+      (xacc::hasService<xacc::Compiler>(params.getString("qobj-compiler")) ||
+       xacc::hasContributedService<xacc::Compiler>(
+           params.getString("qobj-compiler")))) {
+    xacc_to_qobj = xacc::getCompiler(params.getString("qobj-compiler"));
+  } else {
+    xacc_to_qobj = xacc::getCompiler("qobj");
+  }
   if (params.keyExists<int>("shots")) {
     m_shots = params.get<int>("shots");
   }