Try reducing memory used by bazel.

According to
https://bazel.build/reference/be/common-definitions#common-attributes-tests
bazel assume that a test will only use `20mb` of memory.

Might fix;
```
Step hdl#1: Server terminated abruptly (error code: 14, error message: 'Socket closed', log file: '/builder/home/.cache/bazel/_bazel_root/eab0d61a99b6696edb3d2aff87b585e8/server/jvm.out')
```

Signed-off-by: Tim Ansell <[email protected]>

.bazelrc

@@ -24,6 +24,7 @@ build:ciremotebuild --remote_download_outputs=all
 build:ciremotebuild --tls_client_certificate=/root/.ssh/buildbuddy-cert.pem
 build:ciremotebuild --tls_client_key=/root/.ssh/buildbuddy-key.pem
 build:ciremotebuild --build_metadata=VISIBILITY=PUBLIC
+build:ciremotebuild --local_ram_resources=HOST_RAM*.5
 
 test:ciremotebuild --crosstool_top=@llvm_toolchain//:toolchain
 test:ciremotebuild --bes_backend=grpcs://cloud.buildbuddy.io
@@ -35,3 +36,4 @@ test:ciremotebuild --tls_client_certificate=/root/.ssh/buildbuddy-cert.pem
 test:ciremotebuild --tls_client_key=/root/.ssh/buildbuddy-key.pem
 test:ciremotebuild --build_metadata=VISIBILITY=PUBLIC
 test:ciremotebuild --remote_timeout=3600
+test:ciremotebuild --local_ram_resources=HOST_RAM*.5

flows/basic_asic.bzl

@@ -43,6 +43,17 @@ def basic_asic_flow(name, target, cells, top = None, extra_args = {}, gds = True
         top = name
     extra_args = dict(**extra_args)
 
+    build_test_common = dict(
+        # According to
+        # https://bazel.build/reference/be/common-definitions#common-attributes-tests
+        # - setting size to "enormous" means that bazel will assume the task
+        # takes 800mb of memory.
+        size="enormous",
+        # But setting size="enormous" causes timeout to become "external" (IE
+        # 60 minutes), so we force it back to 15m.
+        timeout="long",
+    )
+
     # Synthesis
     synthesize_rtl(
         name = name + "-step1-synth",
@@ -62,6 +73,7 @@ def basic_asic_flow(name, target, cells, top = None, extra_args = {}, gds = True
     build_test(
         name = "build-" + name + "-step1-synth",
         targets = [":" + name + "-step1-synth"],
+        **build_test_common,
     )
 
     # Static timing analysis of synthesis result
@@ -79,6 +91,7 @@ def basic_asic_flow(name, target, cells, top = None, extra_args = {}, gds = True
     build_test(
         name = "build-" + name + "-step1-synth_sta",
         targets = [":" + name + "-step1-synth_sta"],
+        **build_test_common,
     )
 
     # Place and Route
@@ -101,6 +114,7 @@ def basic_asic_flow(name, target, cells, top = None, extra_args = {}, gds = True
         targets = [
             ":" + name + "-step2-place_and_route",
         ],
+        **build_test_common,
     )
 
     # FIXME: Should add a post place and route run_opensta?
@@ -123,6 +137,7 @@ def basic_asic_flow(name, target, cells, top = None, extra_args = {}, gds = True
             targets = [
                 ":" + name + "-step3-gds",
             ],
+            **build_test_common,
         )
 
     # Make sure everything in the extra_args dictionary has been used.