GPU_PTX IRIW+membar.gl+po-p0:p1:p2:p3-xsyg
"Rf-w-s Mgl-d-Rs-Rg Fr-w-g Rf-w-g Po-d-Rg-Rs Fr-w-s"

{}

 P0                 | P1                 | P2                 | P3                 ;
 mov.s32 r0, 1      | ld.cg.s32 r0, [r1] | mov.s32 r0, 1      | ld.cg.s32 r0, [r1] ;
 st.cg.s32 [r1], r0 | membar.gl          | st.cg.s32 [r1], r0 | ld.cg.s32 r2, [r3] ;
                    | ld.cg.s32 r2, [r3] |                    |                    ;

exists (1:r0=1 /\ 1:r2=0 /\ 3:r0=1 /\ 3:r2=0)
(device (kernel (cta (warp P0) (warp P1) (warp P2) (warp P3))))
x:local; y:global
Generated assembler
//START _litmus_P3
	ld.cg.s32 sr03, [sr13] ;
	ld.cg.s32 sr23, [sr33] ;
//START _litmus_P2
	mov.s32 sr02, 1 ;
	st.cg.s32 [sr12], sr02 ;
//START _litmus_P1
	ld.cg.s32 sr01, [sr11] ;
	membar.gl ;
	ld.cg.s32 sr21, [sr31] ;
//START _litmus_P0
	mov.s32 sr00, 1 ;
	st.cg.s32 [sr10], sr00 ;

Binary '/tmp/dira0a391.tmp/IRIW+membar.gl+po-p0:p1:p2:p3-xsyg-0.exe' successfully loaded
Specification clusters: 4
Specification: [[(608, 3, 'R5'), (606, 3, 'R4')], [(650, 2, 'R10')], [(698, 3, 'R4'), (699, 3, 'R5')], [(748, 2, 'R10')]]
Cluster 0: OK
Cluster 1: OK
Cluster 2: OK
Cluster 3: OK
!!SUCCESS!!
Test IRIW+membar.gl+po-p0:p1:p2:p3-xsyg Allowed
Histogram (16 states)
3908  :>1:r0=0; 1:r2=0; 3:r0=0; 3:r2=0;
42    :>1:r0=1; 1:r2=0; 3:r0=0; 3:r2=0;
6624  :>1:r0=0; 1:r2=1; 3:r0=0; 3:r2=0;
1802  :>1:r0=1; 1:r2=1; 3:r0=0; 3:r2=0;
472   :>1:r0=0; 1:r2=0; 3:r0=1; 3:r2=0;
1     *>1:r0=1; 1:r2=0; 3:r0=1; 3:r2=0;
6278  :>1:r0=0; 1:r2=1; 3:r0=1; 3:r2=0;
1219  :>1:r0=1; 1:r2=1; 3:r0=1; 3:r2=0;
5328  :>1:r0=0; 1:r2=0; 3:r0=0; 3:r2=1;
369   :>1:r0=1; 1:r2=0; 3:r0=0; 3:r2=1;
5888  :>1:r0=0; 1:r2=1; 3:r0=0; 3:r2=1;
5419  :>1:r0=1; 1:r2=1; 3:r0=0; 3:r2=1;
821   :>1:r0=0; 1:r2=0; 3:r0=1; 3:r2=1;
40    :>1:r0=1; 1:r2=0; 3:r0=1; 3:r2=1;
7322  :>1:r0=0; 1:r2=1; 3:r0=1; 3:r2=1;
4467  :>1:r0=1; 1:r2=1; 3:r0=1; 3:r2=1;
Ok

Witnesses
Positive: 1, Negative: 49999
Condition exists (1:r0=1 /\ 1:r2=0 /\ 3:r0=1 /\ 3:r2=0) is validated
Observation IRIW+membar.gl+po-p0:p1:p2:p3-xsyg Sometimes 1 49999
Time IRIW+membar.gl+po-p0:p1:p2:p3-xsyg 6.01

  -- 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 -a 8 -gpu-verf-comp true big_bucket/IRIW+membar.gl+po-p0:p1:p2:p3-xsyg-0.litmus -s 50000
Parameters
#ifndef SIZE_OF_TEST
#define SIZE_OF_TEST 50000
#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 */