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Amdahl’s Law You are tasked to optimize a machine learning application on Hadoop. This application has a map stage and a reduce stage. Before optimization, the map stage accounts for 60% of the execution time, whereas the reduce stage accounts for 40%. For the map stage, you can optimize it to use a cluster with 120 CPU cores, with an expected speedup of 120. For the reduce stage, you can optimize it to use GPU processors, with an expected speedup of 40. Limited by time, you can only choose one stage to optimize. Which stage should you choose? Please justify your answer.

 Addressing modes. For each of the following instructions, please give the addressing mode of the SECOND operand. These instructions are in the format of “opcode, dest, src”, where dest is used as both destination and source operand. Rx are registers.  add, R1, [R2]. add, R1, 5.  add, R1, [R2 + 100 + R3 ∗ 4]. 

Which statement about a hypothesis is TRUE?  

  Venezuela y Colombia. ¿Qué recuerdas de los dos países suramericanos? Circle or underline the best option to answer the questions below. (1 point each; 4 points total) Ejemplo: ¿Dónde está la isla Margarita?  a. Colombia           b. Perú           c. Venezuela   d. Costa Rica   ¿Cuál es el país suramericano con costas en el Atlántico y en el Pacífico? [blank1] ¿Cómo se llama la capital de Colombia? [blank2]  ¿Cómo le llaman a las montañas altas con cima plana en Venezuela? [blank3]  ¿Cuál es la capital de Venezuela? [blank4]  

II. Vocabulario [14 puntos]

 1. Are x86 instructions CISC or RISC? 2. Are ARM instructions CISC or RISC? 

Please give two benefits of the more transistors from Moore’s Law.

El cantante colombiano Juanes, le pide a Dios muchas cosas para su país y su gente.   2. ¿Qué pides tú para el mundo y para tu familia?

III. Gramática [18 puntos]

A. Emparejar: Los viajes. Roberto is practicing the following definitions before his trip. Help him match each term with its definition. (2 points each; 14 points total) 1. El pasaporte [blank1] 2. El hostal [blank2] 3. Aterrizar [blank3] 4. Pasarlo de maravilla [blank4] 5. El viajero [blank5] 6. La sala de espera [blank6] 7. Avión/barco [blank7]