$ ./bin/mandelbrot
Initial Boundaries: -2.500000,1.500000,  -1.125000,1.125000
libGL error: OpenDriver: failed to open /usr/lib/fglrx/dri/fglrx_dri.so, error[/usr/lib/fglrx/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
libGL error: OpenDriver: failed to open /usr/lib/x86_64-linux-gnu/dri/fglrx_dri.so, error[/usr/lib/x86_64-linux-gnu/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]

---OpenCL: Platform Vendor 0: NVIDIA Corporation
---OpenCL:    Device found 0. GeForce GTX 960
---OpenCL:        cl_khr_gl_sharing supported!

---OpenCL: Platform Vendor 1: Advanced Micro Devices, Inc.
---OpenCL:    Device found 0. Tahiti
---OpenCL:        cl_khr_gl_sharing supported!
---OpenCL:    Device found 1. Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz
---OpenCL:        cl_khr_gl_sharing supported!

---OpenCL: Looking for OpenGL Context device on platform 0 ... Not Found.
---OpenCL: Looking for OpenGL Context device on platform 1 ... Found!
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  155 (GLX)
  Minor opcode of failed request:  5 (X_GLXMakeCurrent)
  Serial number of failed request:  30
  Current serial number in output stream:  30





$ ldd bin/mandelbrot
        linux-vdso.so.1 =>  (0x00007fffa37c5000)
        libgmp.so.10 => /usr/lib/x86_64-linux-gnu/libgmp.so.10 (0x00007f2750107000)
        librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f274feff000)
        libglfw.so.3 => /usr/lib/x86_64-linux-gnu/libglfw.so.3 (0x00007f274fcec000)
        libGL.so.1 => /usr/lib/fglrx/libGL.so.1 (0x00007f274faf0000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f274f7e8000)
        libGLEW.so.1.10 => /usr/lib/x86_64-linux-gnu/libGLEW.so.1.10 (0x00007f274f55c000)
        libOpenCL.so.1 => /usr/lib/x86_64-linux-gnu/libOpenCL.so.1 (0x00007f274f356000)
        libgomp.so.1 => /usr/lib/x86_64-linux-gnu/libgomp.so.1 (0x00007f274f13f000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f274ef21000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f274eb57000)
        libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f274e81e000)
        libXrandr.so.2 => /usr/lib/x86_64-linux-gnu/libXrandr.so.2 (0x00007f274e614000)
        libXi.so.6 => /usr/lib/x86_64-linux-gnu/libXi.so.6 (0x00007f274e404000)
        libXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 (0x00007f274e1fe000)
        libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f274dfec000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f274dde8000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f2750387000)
        libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f274dbc9000)
        libXrender.so.1 => /usr/lib/x86_64-linux-gnu/libXrender.so.1 (0x00007f274d9bf000)
        libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f274d7bb000)
        libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f274d5b5000)