fixed !x86 compilation
fixed !x86 compilation

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18921277]

kimrutherford/nvbio,kimrutherford/nvbio,kimrutherford/nvbio,kimrutherford/nvbio,NVlabs/nvbio,NVlabs/nvbio,NVlabs/nvbio,NVlabs/nvbio