Merge branch 'debug/gemm-multi-gpu' into 'master'

Benchmark/axpy/axpy.cpp

Benchmark/cholesky_gemm/CMakeLists.txt

Benchmark/cholesky_gemm/cholesky-mpi.cpp

Benchmark/cholesky_gemm/cholesky.cpp

Benchmark/cholesky_gemm/gemm-mpi.cpp

Benchmark/cholesky_gemm/gemm.cpp

Benchmark/particles/particles-simu.cpp

Benchmark/particles_openmp/CMakeLists.txt

Benchmark/particles_openmp/particles-simu-omp.cpp

Src/Compute/SpWorkerTeamBuilder.hpp