PR #179 broke testAPRCuda on 'master' branch

[krzysg]

Latest merge of PR #179 broke some cuda tests.

To reproduce:

• clone latest 'master' of LibAPR
• run commands:

mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Debug -DAPR_USE_CUDA=ON -DAPR_TESTS=ON -DAPR_BUILD_EXAMPLES=OFF ..
make -j 16
ctest

it will fail with:

Test project /tmp/LibAPR/build
      Start  1: fuzz_compress
 1/10 Test  #1: fuzz_compress ....................   Passed    0.01 sec
      Start  2: fuzz_decompress
 2/10 Test  #2: fuzz_decompress ..................   Passed    0.00 sec
      Start  3: testMeshData
 3/10 Test  #3: testMeshData .....................   Passed    0.84 sec
      Start  4: testTiff
 4/10 Test  #4: testTiff .........................   Passed    0.00 sec
      Start  5: testAPR
 5/10 Test  #5: testAPR ..........................   Passed   73.65 sec
      Start  6: testComputeGradient
 6/10 Test  #6: testComputeGradient ..............   Passed    0.85 sec
      Start  7: testLocalIntensityScale
 7/10 Test  #7: testLocalIntensityScale ..........   Passed    0.48 sec
      Start  8: testPullingScheme
 8/10 Test  #8: testPullingScheme ................   Passed    0.08 sec
      Start  9: testAPRParameters
 9/10 Test  #9: testAPRParameters ................   Passed    0.00 sec
      Start 10: testAPRCuda
10/10 Test #10: testAPRCuda ......................***Exception: SegFault  0.16 sec

90% tests passed, 1 tests failed out of 10

Total Test time (real) =  76.07 sec

The following tests FAILED:
	 10 - testAPRCuda (SEGFAULT)
Errors while running CTest
Output from these tests are in: /tmp/LibAPR/build/Testing/Temporary/LastTest.log
Use "--rerun-failed --output-on-failure" to re-run the failed cases verbosely.

if testAPRCuda run seperately it will output:

$ ./test/testAPRCuda 
[==========] Running 105 tests from 12 test suites.
[----------] Global test environment set-up.
[----------] 10 tests from CreatDiffDimsSphereTest
[ RUN      ] CreatDiffDimsSphereTest.TEST_GPU_DOWNSAMPLE
Opening file: [/tmp/LibAPR/test/files/Apr/sphere_diff_dims/sphere_level.tif]
Opening file: [/tmp/LibAPR/test/files/Apr/sphere_diff_dims/sphere_original.tif]
Opening file: [/tmp/LibAPR/test/files/Apr/sphere_diff_dims/sphere_pc.tif]
Opening file: [/tmp/LibAPR/test/files/Apr/sphere_diff_dims/sphere_x.tif]
Opening file: [/tmp/LibAPR/test/files/Apr/sphere_diff_dims/sphere_y.tif]
Opening file: [/tmp/LibAPR/test/files/Apr/sphere_diff_dims/sphere_z.tif]
Segmentation fault (core dumped)

Before latest PR so at:

dca7e7fb 2022-06-16 | Merge pull request #165 from AdaptiveParticles/develop (tag: v2.1.0) [Joel Jonsson]

everything worked fine.

[cheesema]

👋🏻 @krzysg