tst_MyTestCase a data tag a1  __global__ global data tag 1 
tst_MyTestCase a data tag a2 __global__ global data tag 1 
tst_MyTestCase a data tag a1  __global__ global data tag 2
tst_MyTestCase a data tag a2 __global__ global data tag 2
tst_MyTestCase b __global__ global data tag 1 
tst_MyTestCase b __global__ global data tag 2
tst_MyTestCase c data tag c1 __global__ global data tag 1 
tst_MyTestCase c data tag c2 __global__ global data tag 1 
tst_MyTestCase c data tag c3 __global__ global data tag 1 
tst_MyTestCase c data tag c1 __global__ global data tag 2
tst_MyTestCase c data tag c2 __global__ global data tag 2
tst_MyTestCase c data tag c3 __global__ global data tag 2