added volatile keyword to COO __shared__ arrays
added volatile keyword to COO __shared__ arrays

vkirangoud/cusp-library,gshashidhar125/cusp-library,vkirangoud/cusp-library,gshashidhar125/cusp-library,baiyunping333/cusp-library,baiyunping333/cusp-library,vkirangoud/cusp-library,victordion/cusp-library,tectronics/cusp-library,gshashidhar125/cusp-library,victordion/cusp-library,baiyunping333/cusp-library,baiyunping333/cusp-library,vkirangoud/cusp-library,gshashidhar125/cusp-library,tectronics/cusp-library,victordion/cusp-library,victordion/cusp-library,tectronics/cusp-library,tectronics/cusp-library