More matrix/devcontainer updates.

ci/matrix.yaml

@@ -4,24 +4,16 @@ cuda_prev_max: &cuda_prev_max '11.8'
 cuda_curr_min: &cuda_curr_min '12.0'
 cuda_curr_max: &cuda_curr_max '12.4'
 
-# The GPUs to test on
-gpus:
-  - 'a100'
-  - 'v100'
-
 # The version of the devcontainer images to use from https://hub.docker.com/r/rapidsai/devcontainers
 devcontainer_version: '24.06'
 
 # gcc compiler configurations
-gcc6: &gcc6 { name: 'gcc', version: '6', exe: 'g++' }
 gcc7: &gcc7 { name: 'gcc', version: '7', exe: 'g++' }
 gcc8: &gcc8 { name: 'gcc', version: '8', exe: 'g++' }
 gcc9: &gcc9 { name: 'gcc', version: '9', exe: 'g++' }
 gcc10: &gcc10 { name: 'gcc', version: '10', exe: 'g++' }
 gcc11: &gcc11 { name: 'gcc', version: '11', exe: 'g++' }
 gcc12: &gcc12 { name: 'gcc', version: '12', exe: 'g++' }
-gcc-oldest: &gcc-oldest { name: 'gcc', version: '6', exe: 'g++' }
-gcc-newest: &gcc-newest { name: 'gcc', version: '12', exe: 'g++' }
 
 # LLVM Compiler configurations
 llvm9: &llvm9 { name: 'llvm', version: '9', exe: 'clang++' }
@@ -32,17 +24,12 @@ llvm13: &llvm13 { name: 'llvm', version: '13', exe: 'clang++' }
 llvm14: &llvm14 { name: 'llvm', version: '14', exe: 'clang++' }
 llvm15: &llvm15 { name: 'llvm', version: '15', exe: 'clang++' }
 llvm16: &llvm16 { name: 'llvm', version: '16', exe: 'clang++' }
-llvm-oldest: &llvm-oldest { name: 'llvm', version: '9', exe: 'clang++' }
-llvm-newest: &llvm-newest { name: 'llvm', version: '16', exe: 'clang++' }
 
 # MSVC configs
 msvc2017: &msvc2017 { name: 'cl', version: '14.16', exe: 'cl++' }
 msvc2019: &msvc2019 { name: 'cl', version: '14.29', exe: 'cl++' }
 msvc2022: &msvc2022 { name: 'cl', version: '14.39', exe: 'cl++' }
 
-# oneAPI configs
-oneapi: &oneapi { name: 'oneapi', version: '2023.2.0', exe: 'icpc' }
-
 # Each environment below will generate a unique build/test job
 # See the "compute-matrix" job in the workflow for how this is parsed and used
 # cuda: The CUDA Toolkit version
@@ -94,4 +81,3 @@ pull_request:
     - {cuda: *cuda_curr_max, os: 'windows2022', cpu: 'amd64', compiler: *msvc2017, std: [17]}
     - {cuda: *cuda_curr_max, os: 'windows2022', cpu: 'amd64', compiler: *msvc2019, std: [17]}
     - {cuda: *cuda_curr_max, os: 'windows2022', cpu: 'amd64', compiler: *msvc2022, std: [17]}
-    - {cuda: *cuda_curr_max, os: 'ubuntu22.04', cpu: 'amd64', compiler: *oneapi,   std: [17]}