Split SAFE() macro into API-specific typed variants

Avoids incorrectly interpreting CUDA Driver Library error codes as
though they were CUDA Runtime Library error codes (the numbering is
similar, but not identical).

Also cleans up how we initialize and terminate a context for
capability checking in `mon_cross_ctx_copies`.

1 files changed, 1 insertions, 2 deletions

diff --git a/preemption_logger.cu b/preemption_logger.cu
index 667c459..d93600e 100644
--- a/preemption_logger.cu
+++ b/preemption_logger.cu
@@ -27,7 +27,7 @@ struct interval {
 };
 
 // Minimum time discontinuity which indicates a gap between intervals
-// One clock tick is about 1ns
+// Clock resolution is about 1ns, but it only ticks every 1us pre-H100
 #define MIN_PREEMPT_TICKS 2*1000 // ~2us
 
 // Watch for discontinuities in the GPU clock, indicating intervals during
@@ -67,7 +67,6 @@ Spin on the GPU, logging intervals to stdout during which we are scheduled.\n\
   -r, --raw       Print raw logged GPU times (skip conversion to CPU time).\n";
 
 int main(int argc, char **argv) {
-        cudaError_t err; // Needed for the SAFE() macro
         struct interval *ivls_gpu, *ivls;
         struct timespec start, end, end_ivls_only;
         int num_ivls, skip_conversion;