ERROR: /buildAgent/work/99bede84aa0a52c2/source/gpucommon/src/PxgCudaMemoryAllocator.cpp (59) : warning : Failed to allocate pinned memory

I get this error when I try to run lots of parallel environments

PxgCudaDeviceMemoryAllocator fail to allocate memory 56626176 bytes!! Result = 700
PxgCudaDeviceMemoryAllocator fail to allocate memory 40482816 bytes!! Result = 700
PxgCudaDeviceMemoryAllocator fail to allocate memory 53977088 bytes!! Result = 700
/buildAgent/work/99bede84aa0a52c2/source/gpucommon/src/PxgCudaMemoryAllocator.cpp (59) : warning : Failed to allocate pinned memory.

However, neither my RAM nor my VRAM are out of memory. Besides, when I run a small number of parallel environments, everything works fine. Is there any solution for this problem?