멀티코어 프로세서의 활용은 이미 시작되고 있다. 주요 서버 및 PC 공급 업체들은 듀얼코어 및 쿼드코어 기반의 제품을 출시해 시장에 공급하는 중이다. 이처럼 멀티코어 기술이 도래하게 된 배경에는 프로세서 속도를 기하급수적으로 늘려서 CPU의 성능을 높이는 방식이 한계에 도달했기 때문이다. 단일코어 프로세서의 집적도를 더 이상 높일 수 없는 물리적인 한계와 무작정 클록 스피드를 높임으로써 발생하는 발열문제 등이 발생하였다. 이로 인해, 하나의 대안으로 등장한 것이 ‘멀티코어 기술’이다. 성능은 조금 떨어지지만 코어 수를 늘려 병렬로 처리하여 성능을 개선하고 있다. 그러나 이 기술을 제대로 활용하기 위해서는 잘 작성된 멀티 쓰레드 프로그램과 같이 소프트웨어 기술이 필수적이다. 본 고에서는 이러한 멀티코어 환경에서 진정한 성능 향상을 위해 필요한 소프트웨어 기술이 무엇인지, 그리고 현재의 이 분야 산업 동향에 대하여 살펴보았다.
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