Function SECTION

tests/unit/qureg.cpp:51–98

TEST_CASE( "createQureg", TEST_CATEGORY ) {

    SECTION( LABEL_CORRECTNESS ) {

        int numQubits = GENERATE( range(1, 10) );
        CAPTURE( numQubits );

        Qureg qureg = createQureg(numQubits);
        QuESTEnv env = getQuESTEnv();

        // check fixed fields
        REQUIRE( qureg.numQubits == numQubits );
        REQUIRE( qureg.isDensityMatrix == 0 );
        REQUIRE( qureg.numAmps == getPow2(numQubits) );
        REQUIRE( qureg.logNumAmps == getLog2(qureg.numAmps) );
        REQUIRE( qureg.logNumAmpsPerNode == getLog2(qureg.numAmpsPerNode) );
        REQUIRE( (qureg.isMultithreaded  == 0 || qureg.isMultithreaded  == 1) );
        REQUIRE( (qureg.isGpuAccelerated == 0 || qureg.isGpuAccelerated == 1) );
        REQUIRE( (qureg.isDistributed    == 0 || qureg.isDistributed    == 1) );
        
        // check deployment-specific fields
        if (qureg.isDistributed) {
            REQUIRE( qureg.rank == env.rank );
            REQUIRE( qureg.numNodes == env.numNodes );
            REQUIRE( qureg.logNumNodes == getLog2(env.numNodes) );
            REQUIRE( qureg.numAmpsPerNode == qureg.numAmps / env.numNodes );
        } else {
            REQUIRE( qureg.rank == 0 );
            REQUIRE( qureg.numNodes == 1 );
            REQUIRE( qureg.logNumNodes == 0 );
            REQUIRE( qureg.numAmpsPerNode == qureg.numAmps );
        }

        // check memory allocs
        REQUIRE( qureg.cpuAmps != nullptr );
        if (qureg.isGpuAccelerated)
            REQUIRE( qureg.gpuAmps != nullptr );
        if (qureg.isDistributed)
            REQUIRE( qureg.cpuCommBuffer != nullptr );
        if (qureg.isGpuAccelerated && qureg.isDistributed)
            REQUIRE( qureg.gpuCommBuffer != nullptr );

        /// @todo check autodeployments

        // check begins in zero state
        qvector ref = getZeroVector(qureg.numAmps); ref[0] = 1; // |0>
        REQUIRE_AGREE( qureg, ref );

        destroyQureg(qureg);
    }

    SECTION( LABEL_VALIDATION ) {