OPENMP 4.0 target offload Report

Hi ..

I am trying to make a comparison statistics of offload using,

1). Intel compiler assisted offload VS. 2). OPENMP 4.0 target construct 

My QUESTION: HOW I CAN GET OPENMP 4.0 OFFLOAD REPORT(which environment variable I need to set..?), I used OFFLOAD Report=2; intel compiler directive offload it worked fine, BUT I AM GETTING VERY STRANGE STATISTICS WITH OPENMP 4.0 OFFLOAD (I am using Intel Xeon Phi as execution platform)

Here is the code

COMPILER DIRECTIVE OFFLOAD:

// Start time
        gettimeofday(&start, NULL);

        // Run SAXPY 
        #pragma offload target(mic:0) inout(x) out(y)
        {
                        #pragma omp parallel for default (none) shared(a,x,y)
                        for (i = 0; i < n; ++i){
                                y[i] = a*x[i] + y[i];
                        }                                                        
        } // end of target data

        // end time 
        gettimeofday(&end, NULL);

OPENMP 4.0 TARGET OFFLOAD:

// Start time
        gettimeofday(&start, NULL);

        // Run SAXPY
        #pragma omp target data map(to:x)
        {
                #pragma omp target map(tofrom:y)
                {
                        #pragma omp parallel for
                        for (i = 0; i < n; ++i){
                                y[i] = a*x[i] + y[i];
                        }
                }
        } // end of target data

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Thanks in advace. (Raju)