GPU_PTX mp_volatile-p0:p1-xsys

{}

 P0                       | P1                       ;
 mov.s32 r0, 1            | ld.volatile.s32 r0, [r1] ;
 st.volatile.s32 [r1], r0 |                          ;
                          |                          ;
 mov.s32 r2, 1            | ld.volatile.s32 r2, [r3] ;
 st.volatile.s32 [r3], r2 |                          ;

exists (1:r0=1 /\ 1:r2=0)
(device (kernel (cta (warp P0) (warp P1))))
y:local; x:local
Generated assembler
//START _litmus_P1
	ld.volatile.s32 sr01, [sr11] ;
	ld.volatile.s32 sr21, [sr31] ;
//START _litmus_P0
	mov.s32 sr00, 1 ;
	st.volatile.s32 [sr10], sr00 ;
	mov.s32 sr20, 1 ;
	st.volatile.s32 [sr30], sr20 ;

Binary '/tmp/dir933a98.tmp/mp-volatile.exe' successfully loaded
Specification clusters: 2
Specification: [[(437, 9, 'R5'), (438, 9, 'R4')], [(505, 8, 'R10'), (507, 8, 'R12')]]
Cluster 0: OK
Cluster 1: OK
!!SUCCESS!!
Test mp-volatile Allowed
Histogram (4 states)
73033 :>1:r0=0; 1:r2=0;
6301  *>1:r0=1; 1:r2=0;
17093 :>1:r0=0; 1:r2=1;
3573  :>1:r0=1; 1:r2=1;
Ok

Witnesses
Positive: 6301, Negative: 93699
Condition exists (1:r0=1 /\ 1:r2=0) is validated
Observation mp-volatile Sometimes 6301 93699
Time mp-volatile 24.82

  -- device info --
Name:                           GeForce GT 540M
Major revision number:          2
Minor revision number:          1
Total global memory:            1072889856
Total shared memory per block:  49152
Number of multiprocessors:      2

Machine: DeepThought3
Revision 1371, version 5.01 GPU_PTX experimental backend
Command line: ./litmus -mach GTX540m.cfg ASPLOS/mp-volatile.litmus -a 2
Parameters
#ifndef SIZE_OF_TEST
#define SIZE_OF_TEST 100000
#endif
#ifndef NUMBER_OF_RUN
#define NUMBER_OF_RUN 1
#endif
/* cc options: -arch=sm_21 */
/* barrier: user */
/* speedcheck: no */
/* gpu_general_bc: true */
/* gpu_mem_stress: true */
/* gpu-rand-threads: true */
/* gpu_cuda: true */
/* gpu_gen_addr: true */
/* gpu_cvt_global_to_gen: true */
/* gpu_cvt_shared_to_gen: true */
/* gpu_max_ctas: 4 */
/* gpu_min_ctas: 4 */
/* gpu_max_threads: 128 */
/* gpu_min_threads: 128 */