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[Python] UserWarning: The value of the smallest subnormal for <class 'numpy.float64'> type is zero. 본문
[Python] UserWarning: The value of the smallest subnormal for <class 'numpy.float64'> type is zero.
9yelin9 2025. 3. 12. 19:00양자 프로그래밍 언어는 대부분 Python 기반이다.
그래서 C나 Fortran 기반 프로그램에 임베딩 할 때, Python 함수를 부르는 C 함수를 불러서 사용해야 한다... (이상해요)
암튼 C 코드에서 Python.h를 임포트하고 컴파일하면 저 오류가 떠서... 컴퓨터를 부수기 직전 해결해냈다.
UserWarning: The value of the smallest subnormal for <class 'numpy.float64'> type is zero.
Makefile에서 컴파일러 옵션에 -fp-model strict를 추가한다.
CC = [...] -fp-model strict # C
FC = [...] -fp-model strict # Fortran
참고문헌
https://github.com/Qiskit/qiskit-aer/issues/1461
UserWarning: The value of the smallest subnormal for <class 'numpy.float64'> type is zero. · Issue #1461 · Qiskit/qiskit-aer
Informations Qiskit Aer version: 0b0913c Python version: 3.9.6 Operating system: RHEL 8.5 What is the current behavior? Importing AerSimulator gives a Numpy warning. Steps to reproduce the problem ...
github.com
https://moyix.blogspot.com/2022/09/someones-been-messing-with-my-subnormals.html
Someone’s Been Messing With My Subnormals!
TL;DR: After noticing an annoying warning, I went on an absurd yak shave, and discovered that because of a tiny handful of Python packages b...
moyix.blogspot.com