intel_gpu_top: critical assertions

I have an XPS 9343. I get the following output. Do others see the same? Is something wrong? Note that I am using a clean install of Ubuntu 16.04.3.

$ intel_gpu_top
(intel_gpu_top:13311) intel-mmio-CRITICAL: Test assertion failure function intel_mmio_use_pci_bar, file ../../lib/intel_mmio.c:145:
(intel_gpu_top:13311) intel-mmio-CRITICAL: Failed assertion: !(error != 0)
(intel_gpu_top:13311) intel-mmio-CRITICAL: Last errno: 13, Permission denied
(intel_gpu_top:13311) intel-mmio-CRITICAL: Couldn't map MMIO region
Stack trace:
#0 [_init+0x83d9]
#1 [_init+0x6036]
#2 [_init+0x1301]
#3 [__libc_start_main+0xf0]
#4 [_init+0x2f61]
#5 [ +0x2f61]
Test (null) failed.
**** DEBUG ****
(intel_gpu_top:13311) intel-mmio-CRITICAL: Test assertion failure function intel_mmio_use_pci_bar, file ../../lib/intel_mmio.c:145:
(intel_gpu_top:13311) intel-mmio-CRITICAL: Failed assertion: !(error != 0)
(intel_gpu_top:13311) intel-mmio-CRITICAL: Last errno: 13, Permission denied
(intel_gpu_top:13311) intel-mmio-CRITICAL: Couldn't map MMIO region
**** END ****
FAIL (-1.000s)
$