Commit aba05edf authored by Nguyen, Thien Minh's avatar Nguyen, Thien Minh
Browse files

Fixed optimize_only flag 



optimize_only to escape backend submission but not the pass execution.

Also, tested the AER execution with placement for ibmq_ourense backend.

Signed-off-by: default avatarThien Nguyen <nguyentm@ornl.gov>
parent e4e97d35

examples/placement/simplePlacement.cpp

+15 −10
Original line number Diff line number Diff line 
#include <qalloc>



// Add a gate b/w q[0] and q[4] which do not connect directly

// to verify the placement algorithm.

// Creates a 4-qubit GHZ state |0000> + |1111>

// which, on ibmq_ourense, will require mapping

// to fit its connectivity graph  

__qpu__ void test_xasm(qreg q) {

  using qcor::xasm;

  H(q[0]);

  CX(q[0],q[4]);

  CX(q[0],q[1]);

  CX(q[0],q[2]);

  CX(q[0],q[3]);

  Measure(q[0]);

  Measure(q[4]);

  Measure(q[1]);

  Measure(q[2]);

  Measure(q[3]);

}



// Example: using ibmq_ourense (5 qubits) which has
@@ -27,10 +32,10 @@ __qpu__ void test_xasm(qreg q) { 
// url: https://quantumexperience.ng.bluemix.net



int main() {

  auto q = qalloc(5);

  {

    class test_xasm t(q);

    t.optimize_only = true;

  }

  std::cout << "AFTER PLACEMENT: \n" << quantum::program->toString() << "\n";

  // This circuit requires 4 qubits.

  auto q = qalloc(4);

  test_xasm(q);

  // Expect: ~50-50 for "0000" and "1111"

  // (plus some variations due to noise)

  q.print();

}

handlers/qcor_syntax_handler.cpp

+1 −1
Original line number Diff line number Diff line
@@ -207,8 +207,8 @@ public: 
    }

    OS << ");\n";



    OS << "if (optimize_only) {\n";

    OS << "xacc::internal_compiler::execute_pass_manager();\n";

    OS << "if (optimize_only) {\n";

    OS << "return;\n";

    OS << "}\n";