[ROCm][CI] Increasing parallelism in Basic Models Tests (Extra Initialization) (#47591)

Signed-off-by: Andreas Karatzas <akaratza@amd.com>

.buildkite/test-amd.yaml

@@ -1301,7 +1301,7 @@ steps:
 #----------------------------------------------------------  mi300 · kernels  ----------------------------------------------------------#
 
 - label: vLLM IR Tests # TBD
-  timeout_in_minutes: 30
+  timeout_in_minutes: 180
   mirror_hardwares: [amdexperimental, amdproduction, amdgfx942nightly, amdmi300]
   agent_pool: mi300_1
   optional: true
@@ -1350,7 +1350,7 @@ steps:
   - pytest -v -s kernels/core --ignore=kernels/core/test_minimax_reduce_rms.py  kernels/test_concat_mla_q.py kernels/test_top_k_per_row.py
 
 - label: Kernels KDA Test # TBD
-  timeout_in_minutes: 30
+  timeout_in_minutes: 180
   mirror_hardwares: [amdexperimental, amdproduction, amdgfx942nightly, amdmi300]
   agent_pool: mi300_1
   optional: true
@@ -1558,7 +1558,7 @@ steps:
   - TP_SIZE=1 DP_SIZE=2 pytest -v -s v1/distributed/test_eagle_dp.py
 
 - label: Model Runner V2 Pipeline Parallelism (4 GPUs) # TBD
-  timeout_in_minutes: 60
+  timeout_in_minutes: 180
   mirror_hardwares: [amdexperimental, amdproduction, amdgfx942nightly, amdmi300]
   agent_pool: mi300_4
   num_gpus: 4
@@ -1577,7 +1577,7 @@ steps:
   - pytest -v -s distributed/test_pp_cudagraph.py -k "not ray"
 
 - label: Model Runner V2 Spec Decode # TBD
-  timeout_in_minutes: 45
+  timeout_in_minutes: 180
   mirror_hardwares: [amdexperimental, amdproduction, amdgfx942nightly, amdmi300]
   agent_pool: mi300_1
   optional: true
@@ -1604,7 +1604,7 @@ steps:
   timeout_in_minutes: 180
   mirror_hardwares: [amdexperimental, amdproduction, amdgfx942nightly, amdmi300]
   agent_pool: mi300_1
-  parallelism: 2
+  parallelism: 6
   working_dir: "/vllm-workspace/tests"
   source_file_dependencies:
   - vllm/model_executor/models/
@@ -1915,7 +1915,7 @@ steps:
   - pytest -v -s plugins_tests/lora_resolvers # unit tests for in-tree lora resolver plugins
 
 - label: GGUF Plugin # TBD
-  timeout_in_minutes: 30
+  timeout_in_minutes: 180
   mirror_hardwares: [amdexperimental, amdproduction, amdgfx942nightly, amdmi300]
   agent_pool: mi300_1
   optional: true