Hi,

according to the standard (p. 163), atomic is executed "as if in a single step 
during which all other concurrent activities in the same place are blocked". 
Halting all other activities for all accesses to shared variables seems to be 
inefficient for any reasonable number of threads. 
Is this implemented (or planned to be implemented) in a more efficient way 
(and how)? Or what else is the philosophy behind this design decision, e.g., 
should one strive to have only very few threads per place, and instead use 
multiple places per node? 
Thanks for any help,

Claudia
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