GPU error:"No active application"
 

HI,
I am facing a pertinent problem while using Ansys 15.07 in a Dell Precision T7610 Workstation having 64GB RAM and 1 NVDIA Tesla K20 card for GPU. The following error message is is being displayed every time for running GPU based solver be it Fluent or Structural solver.
AMG on GPGPU
NVAMG version 4
Built on Aug 21 2013, 13:02:58
Thrust failure: bad allocation: out of memory
File and line number are not available for this exception.
NVAMG ERROR: file ..\..\src\amg_gpu.c line 905
NVAMG ERROR: Thrust failure

Error: There is no active application.
Error Object: (case-modified?)
MPI Application rank 0 exited before MPI_Finalize() with status 1

Error: There is no active application.
Error Object: (data-valid?)


Can anybody comment in this context?

Thnks in advance.

Saurav