[ET Trac] [Einstein Toolkit] #1732: hw fails to link with cuda

[Einstein Toolkit]

#1732: hw fails to link with cuda
--------------------+-------------------------------------------------------
 Reporter:  knarf   |       Owner:                     
     Type:  defect  |      Status:  new                
 Priority:  major   |   Milestone:                     
Component:  Other   |     Version:  development version
 Keywords:          |  
--------------------+-------------------------------------------------------
 I get link errors like this:
 {{{
 /home/knarf/psamr/configs/sim/scratch/external/hwloc/lib/libhwloc.a
 (topology-cuda.o): In function `hwloc_cuda_backend_notify_new_object':
 /home/knarf/psamr/configs/sim/scratch/build/hwloc/hwloc-1.7.2/src
 /topology-cuda.c:122: undefined reference to `cudaGetDeviceProperties'
 /home/knarf/psamr/configs/sim/scratch/external/hwloc/lib/libhwloc.a
 (topology-cuda.o): In function `hwloc_cuda_query_devices':
 /home/knarf/psamr/configs/sim/scratch/build/hwloc/hwloc-1.7.2/src
 /topology-cuda.c:38: undefined reference to `cudaGetDeviceCount'
 /home/knarf/psamr/configs/sim/scratch/external/hwloc/lib/libhwloc.a
 (topology-cuda.o): In function `hwloc_cudart_get_device_pci_ids':
 /home/knarf/psamr/configs/sim/scratch/build/hwloc/hwloc-1.7.2/include/hwloc/cudart.h:49:
 undefined reference to `cudaGetDeviceProperties'
 collect2: error: ld returned 1 exit status
 }}}

 hwloc is built (system version present, but deemed too old). The
 configuration is using the standard debian option list (on spine).
 Everything is dev-version, clean checkout.

 It seems to me that hwloc picks up a cuda dependency (present on system),
 but the linker isn't told about it (no cuda present in Cactus config).

-- 
Ticket URL: <https://trac.einsteintoolkit.org/ticket/1732>
Einstein Toolkit <http://einsteintoolkit.org>
The Einstein Toolkit