avx

问题 I\'m confused on how many flops per cycle per core can be done with Sandy-Bridge and Haswell. As I understand it with SSE it should be 4 flops per cycle per core for SSE and 8 flops per cycle per core for AVX/AVX2. This seems to be verified here, How do I achieve the theoretical maximum of 4 FLOPs per cycle? ,and here, Sandy-Bridge CPU specification. However the link below seems to indicate that Sandy-bridge can do 16 flops per cycle per core and Haswell 32 flops per cycle per core http://www

问题 \"Best\" means fewest instructions (or fewest uops, if any instructions decode to more than one uop). Machine-code size in bytes is a tie-breaker for equal insn count. Constant-generation is by its very nature the start of a fresh dependency chain, so it\'s unusual for latency to matter. It\'s also unusual to generate constants inside a loop, so throughput and execution-port demands are also mostly irrelevant. Generating constants instead of loading them takes more instructions (except for

问题 I am new to TensorFlow. I have recently installed it (Windows CPU version) and received the following message: Successfully installed tensorflow-1.4.0 tensorflow-tensorboard-0.4.0rc2 Then when I tried to run import tensorflow as tf hello = tf.constant(\'Hello, TensorFlow!\') sess = tf.Session() sess.run(hello) \'Hello, TensorFlow!\' a = tf.constant(10) b = tf.constant(32) sess.run(a + b) 42 sess.close() (which I found through https://github.com/tensorflow/tensorflow) I received the following