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Enable RISCV64 IBs#2679

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smuzaffar merged 2 commits intocms-sw:masterfrom
akritkbehera:Enable-RISC_V-IBs
Feb 10, 2026
Merged

Enable RISCV64 IBs#2679
smuzaffar merged 2 commits intocms-sw:masterfrom
akritkbehera:Enable-RISC_V-IBs

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@akritkbehera akritkbehera commented Feb 10, 2026

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cmsbuild commented Feb 10, 2026

A new Pull Request was created by @akritkbehera for branch master.

@akritkbehera, @cmsbuild, @iarspider, @raoatifshad, @smuzaffar can you please review it and eventually sign? Thanks.
@ftenchini, @mandrenguyen, @sextonkennedy you are the release manager for this.
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cmsbuild commented Feb 10, 2026 •
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cms-bot internal usage

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makortel commented Feb 10, 2026

Cool!

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smuzaffar reviewed Feb 10, 2026
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SCRAM_ARCH=el8_amd64_gcc13;PKGTOOLS_TAG=V00-34-XX;CMSDIST_TAG=IB/CMSSW_16_1_X/root638;RELEASE_BRANCH=master;RELEASE_QUEUE=CMSSW_16_1_ROOT638_X;DOCKER_IMG=cmssw;BUILD_HOUR=23;PR_TESTS=1;BUILD_DAY=1,3,5;
SCRAM_ARCH=el8_amd64_gcc13;PKGTOOLS_TAG=V00-34-XX;CMSDIST_TAG=IB/CMSSW_16_1_X/rootmodule;RELEASE_BRANCH=master;RELEASE_QUEUE=CMSSW_16_1_CXXMODULE_X;DOCKER_IMG=cmssw;BUILD_DAY=1,5;BUILD_HOUR=23;DEBUG_EXTERNALS=root;
SCRAM_ARCH=el10_amd64_gcc14;PKGTOOLS_TAG=V00-34-XX;CMSDIST_TAG=IB/CMSSW_16_1_X/el10;RELEASE_BRANCH=master;RELEASE_QUEUE=CMSSW_16_1_X;DOCKER_IMG=cmssw;BUILD_HOUR=11;BUILD_DAY=2,4;IB_ONLY=1;BUILD_OPTS=microarchs:x86-64-v4;
SCRAM_ARCH=fc42_riscv64_gcc15;PKGTOOLS_TAG=V00-34-XX;CMSDIST_TAG=IB/CMSSW_16_1_X/g15;RELEASE_BRANCH=master;RELEASE_QUEUE=CMSSW_16_1_X;DOCKER_IMG=cmssw;BUILD_HOUR=25;BUILD_DAY=2,4;IB_ONLY=1;BUILD_OPTS=cpp23,without:cuda,tensorflow,valgrind,openloops,acts,use-system-tools:rpm,autotools,gcc;
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@smuzaffar smuzaffar Feb 10, 2026

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thanks @akritkbehera for working on this.
Looking at the https://github.com/cms-sw/cms-bot/blob/master/cmsrep.sh#L17-L26 logic, I think the BUILD_OPTS should be cpp23,without:cuda:tensorflow:valgrind:openloops:acts,use-system-tools:rpm:autotools:gcc

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cmsbuild commented Feb 10, 2026

Pull request #2679 was updated.

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smuzaffar commented Feb 10, 2026

lets get this in and try building riscv64 IB today

@smuzaffar smuzaffar merged commit 08b8f15 into cms-sw:master Feb 10, 2026
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smuzaffar commented Feb 10, 2026

I have started 23h00 IB to build for fc42_riscv64_gcc15 ( https://cmssdt.cern.ch/jenkins/job/build-any-ib/232909/console).

This IB will use following configuration

  • Use system: gcc (15.1.1), autotools and RPM (4.20.1)
  • C++23
  • Disable packages which does not build for riscv64:
    • cuda : not available
    • tensorflow: Does not support Riscv64
    • valgrind: Might build but did not try to build it
    • openloops: builds but process takes too much resources (memory) that it kills the system
    • acts: Does not build, internally downloads prebuild uv built for arm64 and x86_64

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