AMD Radeon R9 M370X not being used, Mac

[led5150]

Hey all,

I am fairly new to this game, but I've been trying to get my GPU to be recognized by hashcat.  As far as I understand it, the AMD Radeon R9 M370X supports openCL, but hashcat is not using it.

As far as the drivers go, they are whatever came with my Mac, and without upgrading the OS, it looks like I can't update the drivers.  Here's what I'm working with, dated, I know:

OSX: 10.11.6
MacBook Pro (Retina, 15-inch, Mid 2015)
Processor 2.8 GHz Intel Core i7
Memory 16 GB 1600 MHz DDR3
Graphics Intel Iris Pro 1536 MB

It sees the Intel guy, but not this one

AMD Radeon R9 M370X:

  Chipset Model: AMD Radeon R9 M370X
  Type: GPU
  Bus: PCIe
  PCIe Lane Width: x8
  VRAM (Total): 2048 MB
  Vendor: ATI (0x1002)
  Device ID: 0x6821
  Revision ID: 0x0083
  ROM Revision: 113-C5670E-945
  gMux Version: 4.0.20 [3.2.8]
  EFI Driver Version: 01.00.945


Not sure if there is anything I can do?  I'd love to get more power as I'm currently in a password breaking contest at school and at a miserable 218 kH/s I doubt I'll win.

Thanks for any help!