Add multimap size #780

Job	Run time
Doxygen check	19s
Compute matrix	4s
Verify Dev Containers / Verify devcontainers	14s
CUDA12.6 gcc / amd64 / Build gcc12/C++17 / Build gcc12/C++17	3m 18s
CUDA12.6 gcc / amd64 / Build gcc13/C++17 / Build gcc13/C++17	3m 31s
CUDA11.8 gcc / amd64 / Build gcc11/C++17 / Build gcc11/C++17	2m 55s
CUDA12.6 gcc / arm64 / Build gcc12/C++17 / Build gcc12/C++17	2m 56s
Verify Dev Containers / List devcontainers	4s
Verify Dev Containers / cuda12.6-gcc13	1m 6s
Verify Dev Containers / cuda12.6-gcc13	1m 10s
Verify Dev Containers / cuda12.6-gcc12	1m 5s
Verify Dev Containers / cuda11.8-gcc11	57s
CUDA12.6 gcc / arm64 / Test ${{ inputs.test_name }}	0s
CUDA11.8 gcc / amd64 / Test gcc11/C++17 / Test gcc11/C++17	13m 9s
CUDA12.6 gcc / amd64 / Test gcc12/C++17 / Test gcc12/C++17	6m 59s
CUDA12.6 gcc / amd64 / Test ${{ inputs.test_name }}	0s
CI success	1s
	37m 48s

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