CODEWITHSUNDEEP
drake
Steven Yeung
Steven Yeung

Reputation: 1

Drake Installation Freeze

I am trying to install the python-binding of drake. After make --j it freezes. I believe I have done everything correctly for the previous steps. Can anyone help? I am running on Ubuntu 18.04 with python 3.6.9.

Thank you in advance. It looks like this.

Frozen Terminal

Upvotes: 0

Views: 99

Answers (3)

Rufus
Rufus

Reputation: 5566

Possibly out of memory..

A hacky solution is to change the CMakeLists.txt file to set the max number of jobs bazel uses by adding --jobs N (where N is the number of jobs you allow concurrently) after ${BAZEL_TARGETS} like so

ExternalProject_Add(drake_cxx_python
  SOURCE_DIR "${PROJECT_SOURCE_DIR}"
  CONFIGURE_COMMAND :
  BUILD_COMMAND
    ${BAZEL_ENV}
    "${Bazel_EXECUTABLE}"
    ${BAZEL_STARTUP_ARGS}
    build
    ${BAZEL_ARGS}
    ${BAZEL_TARGETS}
    --jobs 1
  BUILD_IN_SOURCE ON
  BUILD_ALWAYS ON
  INSTALL_COMMAND
    ${BAZEL_ENV}
    "${Bazel_EXECUTABLE}"
    ${BAZEL_STARTUP_ARGS}
    run
    ${BAZEL_ARGS}
    ${BAZEL_TARGETS}
    --
    ${BAZEL_TARGETS_ARGS}
  USES_TERMINAL_BUILD ON
  USES_TERMINAL_INSTALL ON
)

Upvotes: 0

Jamie Snape
Jamie Snape

Reputation: 56

Use make (no -j flag) or make -j1 because bazel (which is called internally during the build) handles the parallelism of the build (and of tests) and will set the number of jobs to the number of cores by default (appears to be 8 in your case).

To adjust the parallelism to reduce the number of jobs to less than the number of cores, create a file named user.bazelrc at the root of the repository (same level as the WORKSPACE file) with the content

test --jobs=N

for some N less than the number of cores that you have.

See also https://docs.bazel.build/versions/master/guide.html#bazelrc.

Upvotes: 1

Russ Tedrake
Russ Tedrake

Reputation: 5533

From the screen shot, it doesn't look like the drake build system is doing anything wrong. But make -j is probably trying to do too many things in parallel. Try starting with -j4 and if it still freezes, go down to 2, etc.

Upvotes: 0

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